After I left #Twitter looks like the birdsite suspended my account after I set my bio to https://polarhive.ml/Why-I-Left-Twitter/
I then had to log back in and I had to solve a captcha. I dug through Twitter Rules and I'm pretty sure they're pissed off that the only thing I used Twitter was to siphon users to my Mastodon account. 
#surveillancecapitalism #fediverse #FediFirst #deletetwitter #birdsite
@polarhive I have two accounts and recently switched to mastodon cross-posting from two accounts here, twitter bios pointing here. It was because they started suspending one of those accounts as a bot that I switched!
That continued for a while. First I had to complain, then a few times to solve captchas. That account is 12 years old and 130K tweets, but their algo thought it was a bot.
The other is younger, as active and more followed but has never been suspended.
Hard to say what criteria they use.
@polarhive
doubt it ;)
if you setup your own crossposter and didn't configure it properly (eg. permit crossposting boosts), twitter considers this as spam and abuse of their api...
happend to me ;)
it even happened to @renatolond ;)
@pmj @renatolond
The old one (As shown in the 4th screenshot) worked fine even with cross posting. I deleted that account sometime in october.
I then made a new account just to hold the username. The only thing I did was point the link in my bio to Mastodon.
@polarhive i got suspended out of the blue for api violations several weeks after i stopped using my own crossposter ;)
the twitter AI is total crap ;)
Niklas
@polarhive Interesting 🤔 I know many people who have set their Birdsite display name to their Mastodon handle or advertise for Mastodon otherwise and didn't get suspended.Maybe they really dislike that specific blog post 😆 Well,it's not a big loss,Mastodon is better anyway.
@nipos
Here's an snapshot (July) eventhough I changed my name, as long as there were some posts (keeps people reading on TW nothing happened.)
I later deleted that account and now they've suspended my dummy account for spam.
https://web.archive.org/web/20200707051022/https://twitter.com/polarhive
@polarhive Wow, that explains a lot! I first related the constant captcha requests on birdsite to me using an anonymity VPN; however I tweeted a lot of links to Mastodon toots, and I also changed my screen name there to 'kernpanik@chaos.social'. Since then, my profile would be shown to other users as 'restricted'.
I guess they've just added popular Masto instances to their AI/machine learning algorithm as an indicator for users they want to keep out. Hence the captchas and profile restrictions.
@kernpanik I swear! Now I can't even close my account or change the bio to something generic than suggesting where to find me next. It says you're restricted.
@polarhive
Yeah I heard a rumour they were going after people who posted the #MastoMonday hashtag over there as well.
A multi-billion dollar company cutting off the oxygen to a minnow like fedi. Sad behaviour on their part.