Sure, there's threads on WSB about this, but there's no real way to tie that to actual transactions, and not everyone who has bought stock even contributes to that subreddit, let alone the specific threads about this.

Furthermore, all it really takes is someone saying "I bought stock because I believe in the company". We don't have thought police; unless someone explicitly posts "I, RH account XXX, bought the stock in a concerted effort to short it" there's no real way to prove intent.