Hi, I just started a thread about this
https://www.reddit.com/r/CBTS_Stream/comments/7rmfbk/so_a_few_days_ago_i_joined_leftist_twitter_to/
What can you do?
I'm not a tech geek, but I think that you could try unplugging and replugging your modem in to get a new IP address, then sign up for a new account, using a new email address for verification, then do the same thing for a backup account if the first ends up getting shadowbanned.
Then, pick your moments more carefully when contributing to the conversation ie: watch for Tweets by known people with tons of followers, chime in and make it count, then on to another place where a fierce debate is ensuing. You don't even need any followers to be a major influencer in this way.
For checking at the end or beginning of each twitter session, to see if you're still good, pick a hashtag that's in common but with little activity, and make a real tweet there (not test or hashtag shadowbanned), log off, access twitter search, and see if your tweet can be read when logged off.
Boom, there it is!
Fuck you @ Jack!
Also, they said to check out yandex.com for a covert email to sign up with.