The only thing I can think of is that I tweeted Poloniex and their guy MickD a few times. Less than 3 times a day in regards to a withdraw that has been pending for a month almost.
The tweets didn't seem to me as anything that voilated Twitter rules and it wasn't a "repeate" thing.
This account also wasn't a personal account. It was a crypto business. It seems it was more likely targeted for being Bitcoin related/faucet/cryptocurrency related.
It's not your fault and it's not related to the recent ad ban as some people seem to think. In the last year or two, a lot crypto related Twitter accounts have been suspended for ever, and that without any clear reason.
I personally think that it has to do with large scale reports against your Twitter handle, but I'm not in a position to provide any proof because we don't even know what's going on here.
It's pretty lame to see them just point you to their rules page, but fail to specifically name up the exact reason. There are some decent free Twitter handles that you can register, I'll PM you them now.