Tor Browser 7.5.4 is released

I think yeah they do warn

Welcome to the club!

Good advice on using Tor Browser wisely:
https://www.torproject.org/download/download-easy.html.en#warning

Advice on using Tails wisely:
https://tails.boum.org/doc/index.en.html

If you want help trying to explain to your friends why privacy matters, some of the best books I have read which explain why ordinary citizens need Tor are:

Julia Angwin, Dragnet Nation, 2014
Daniel J. Solove, Nothing to Hide, Yale U Press, 2011
Cathy O'Neill, Weapons of Math Destruction, Crown, 2016
Jennifer Granick, American Spies, Cambridge U Press, 2017
Virginia Eubanks, Automating Inequality, St Martin's Press, 2017
Cyrus Farivar, Habeus Data, Melville House, 2018

In coming months, look for upcoming stories (unless USIC kills them) on how US National Labs have constructed supercomputer models in which every USPER is individually modeled, along with their relations to family, friends, and coworkers. These models are built using USG and private databases holding information on education, employment, finances, health, travel, local government interactions, social media, &c. The models are run, tweaked by some possible government action, then rerun to see which alternative most increases the government's self-defined "utility value". This is, rather literally, surveillance of The People by the Government for the Good of the Government and against the Good of the People. Anything you (or your family or friends) say or do today can be used against you decades into the future. This is what Snowden is talking about when he uses the apt term "databases of ruin".

These population control supercomputer modeling programs were one of USG's most closely guarded secrets for decades, but former LANL scientists are finally beginning to hint in interviews with major news organizations what they have been doing, starting with modeling which might appear "benign" or even beneficial:

wired.com
Scientists Know How You’ll Respond to Nuclear War—and They Have a Plan
Using an unprecedented level of data from more than 40 different sources, resear
chers can now make synthetic populations of entire cities.
Megan Molteni
13 Feb 2018

Much of this work has been done under cover of "traffic engineering" (no joking). The people who do this work know very well that this is merely a cover for much nastier modeling. Think "predictive policing" on steroids.

Another leader in this is China, which is doing it openly. Joseph Stalin would have loved this technology.

I don't understand your concern. Suppressing steganoography would be much like suppressing encryption itself--- hiding the fact, content, and destination of traffic is what Tor products are all about, so it doesn't really make sense to complain to Tor Project about steganography.

The article describes a long used method of steganography, which is useful for activists and endangered dissidents who live in repressive nations. It also mentions digital watermarking, which can be used by activists for good purposes as well as by censorship-enabling companies such as Forensicon for (apparently) bad purposes. In short, like everything else, software cannot know who is using it and why. Sometimes the bad guys use good things for bad purposes--- that's life.

In any event, I very much doubt Tor Project can "do something" about the use of steganography even if anyone wanted to do that.

Here is one piece of advice: get to know The Enemy. This is a project to work on over the next few months, not a easy path but I think essential for anyone who wants to work for Tor Project.

You should probably begin by downloading all the published Snowden links, ANT catalog, SpyFiles catalog, etc. before the end of Net Neutrality (11 Jun 2018) just to be sure you will be able to read them when you know enough to understand them. Then you can start reading the following links (roughly prioritized from easy/short/recent to technical/lengthy/dated):

Up to date and readable outline of the basic issues:
https://theyarewatching.org/

Dated but easy reading (WARNING: dodgy cert):
https://www.aclu.org/issues/privacy-technology/surveillance-technologies

A bit more technical, somewhat dated:
https://ssd.eff.org/

Excellent source for latest information on surveillance-as-a-service companies:
https://citizenlab.ca/

Good advice from Micah Lee:
https://theintercept.com/2016/11/12/surveillance-self-defense-against-t…

Fabulous compendium of surveillance-as-a-service companies and their products:
https://theintercept.com/surveillance-catalogue/

Another excellent source of information on surveillance-as-a-service-companies:
https://wikileaks.org/The-Spyfiles

Searchable index of the leaked emails from defunct spyco HB Gary Federal:
https://www.wikileaks.org/hbgary-emails/?q=&mfrom=&mto=&title=&notitle=…

Leaked newsletters from a spyco: Stratfor:
https://search.wikileaks.org/gifiles/

The best source of information on NSA surveillance (highly technical):
https://www.eff.org/nsa-spying/nsadocs
(Read Jennifer Granick's book American Spies for some help understanding Snowden leaks.)

The ANT catalog, the most important post-Snowden leak (includes copies of original NSA docs):
https://en.wikipedia.org/wiki/NSA_ANT_catalog

Information on CIA cyberespionage (technical and at the center of political controversy in USA):
https://wikileaks.org/vault7/

Excellent source of information on the revolving door between US miltary/USIC and spycos:
https://icwatch.wikileaks.org/search?action=index&controller=search&doc…

Dated but invaluble (WARNING: not an https site?)
http://projects.washingtonpost.com/top-secret-america/
(Many of the companies named have merged or changed names.)

The Intercept (theintercept.com) regularly publish stories on surveillance mercenaries, private security forces like BlackSwan, police misconduct around the world. The Guardian (theguardian.com) has published many important stories on outrageous infiltration by UK police of EU peace/environmental groups and extralegal killings of environmentalists and reporters. Human Rights Watch (hrw.org), Amnesty (amesty.org), Reporters without Borders (rsf.org) are excellent sources of information upon current human rights abuses, very few of which are covered by most major US/EU newspapers.

Years ago, Bloomberg News published many good articles on spycos, for example:
https://www.bloomberg.com/news/articles/2012-08-29/spyware-matching-fin…
But they appear to have removed their index to these stories after it was revealed the company was routinely spying on its own reporters.