It was mostly about posting spam, DDoSing Russian sites and hacking them. (Majority of people weren't tech savy enough to be a hacker, they would just download a script and run it on a specific ip/domain)
That was about 3-4 weeks into the war and I left it so I don't know what happened to it maybe it still exists and has more members.
It is, 225k members.
The most amusing is what they are not only 'attacking' Russian sites, but any and anything what doesn't fit their view of the world (eg 1-star bombing some Germany *Bahn when they didn't 'didn't threw out the occupant from the job' when a conductor ignored some butthurt Ukranian)
And what it is freely accessible from Wikipedia: https://uk.wikipedia.org/wiki/%D0%92%D1%96%D0%BA%D1%96%D0%BF...
[1]: https://duckduckgo.com/?q=site%3Anytimes.com+u.s.+intelligen...
[1] https://duckduckgo.com/?t=ffab&q=molecules+of+freedom&ia=web
Edit: Oh of course a Russian would be upset that the U.S. is helping Ukraine repel their invasion.
But it's all power play between states and ruling elites, what about citizens? They are dissatisfied in democracy as much in U.S. as in Russia. [4] We better fix our problems from within rather than turn on each other.
[1] https://duckduckgo.com/?t=ffab&q=Biden+family+ukraine&ia=web
[2] NATO expansion
[3] (use translate) https://russian.rt.com/business/article/1010248-gaz-rossiya-...
[4] https://www.pewresearch.org/fact-tank/2020/02/27/how-people-...
Also the invasion clearly had nothing to with NATO. It was about Russian imperialism. Putin clearly spelled it out for people