Is this a joke ?
I've downloaded Russian archive. Tweets there are not in any way promoting any party , they are mostly retweets of regional and statewide news agencies' posts. Some do have pro-Russia bias, but nothing raging and nothing I could label as propaganda.
According to Twitter, they were "suspended for violations of our platform manipulation policy, specifically cross-posting and amplifying content in an inauthentic, coordinated manner for political ends."
If you use a bot to retweet "regional and statewide news agencies' posts", that would fall under the description above.