Obviously it's anecdotal, but several of these people were my friends and coworkers. Some even set up trading accounts on the wake of the news (mostly the ones that were in late and lost money). Most went in small for the lols and made/lost a couple of hundred bucks, but there was one who did make a few thousand dollars, and given how much (starting when the share price was much lower) he shared during the process, I'm inclined to believe him.

Also aforementioned impact on robinhood and other retail brokers.