It seems that the reddit community has been expecting this for quite a while, though maybe they didn't expect it to get noticed outside of wallstreetbets.
15 days ago, with discussion on upcoming gamma squeezes and eventual short squeeze. Price was $20. https://www.reddit.com/r/wallstreetbets/comments/kwb827/gme_...
1 month ago: "shorts are still ~100% short and running out of time" https://www.reddit.com/r/wallstreetbets/comments/kh9na8/gme_...
4 months ago: "bankrupting institutional investors for dummies, ft Gamestop" https://ns.reddit.com/r/wallstreetbets/comments/ivs6dw/bankr...
(added) another from 4 months ago, focusing even more on a short squeeze: https://www.reddit.com/r/wallstreetbets/comments/ip6jnv/the_...
(I just found these via the search function.)
A friend was telling me a few hours ago that she's exiting once GME hits $5000 - yes, five thousand dollars, I specifically checked that was what she meant. She (and a few other friends who didn't name dollar amounts) have been misled about what a short squeeze is, and believe there's some specific future event called "the short squeeze" where they're guaranteed to make money if they're holding GME when it happens.
So what was done was regulations were put in that forced brokers to limit risk. So RH followed those regulations and now people are pissed.
The stock is still up like 250%. By definition, far more of them are still in their positions than out. You only "make" money when you sell.
I'm not sure what is making you think all of the RH users were suckers, many of them have made quite a bit off of this. I don't personally use RH currently (although I have in the past). Ideally the bag holder in this situation would be those covering their short positions. But there is no doubt some will get burned. It's far from over though and there has been plenty of opportunity to cash out. In fact it's way up in aftermarket again this evening.