Thats a really interesting find. Maybe it has something to do with the hype of bitcoin when it hit $20k, people came to this forum then suddenly lost interest when it he price dropped?
I bet most of the newbie accounts are from that period only.
Such a crash is very bad for crypto in general. It will not only result in huge loss for the new investors but some may get done with crypto with this first bitter experience. I mean loss of 10-20% is still fine but someone loosing half of his money or more in few days can have a very large impact. Probably many such investors never looked back at crypto or this forum.