"Sort of getting sick of this stupid meme, citing Joan Rivers as some unimpeachable source, when she was only repeating the same meme she saw on the internet. Ridiculous."

Dishonest take as usual. We're not using Joan Rivers as a source, unimpeachable or otherwise. There's plenty of proof that Big Mike is a dude if you know where to look, like this this video. The Joan Rivers situation is notable because just two months after she outed Big Mike she died in a suspiciously botched routine procedure. Considering the timing and the Democrats' habit of murdering inconvenient people (Vince Foster, Seth Rich, I'm sure there are others), the Streisand effect ended up giving that clip far more attention than it would have gotten otherwise.