I have been paying attention to r/wallstreetbets for the past few weeks - I don't have the source handy (it was on WallStreetBets), but there are reputable big name funds / companies who are long on GME. Other big name companies are short, of course, and the WSB community has picked a side in this battle.

So the idea that WallStreetBets is a significant player in all this is nonsense and actually might be propaganda flak coming from the "responsible" people in the media, etc - journalists in the financial sector love rumors and such things and it is a nice cover story as "fog" to hide the fact Wall Street is so manipulated by the big players.