I'd never heard of "navy seal copypasta", so I googled it, and to my read, its very hard to see any >wink< >wink< in the text, which ends after a long screed, with threats of violence against the poster. So I think its reasonable to believe that maybe on of the people on the twitter abuse team didn't get the joke and instead saw what on its surface looks like a threat. I don't know twitter's ToS, but I'm guessing that if taken literally that text could violate them.
No, it wasn’t. There are plenty of people online who both a) can’t spell, and b) are unhinged enough to make genuine threats against a stranger’s life.