Maybe they're bitter they missed out on being early adopters.
I think the clincher is that they were screaming doom when it was a few dollars or less only to witness it blowing up around them. That's not going to be very good for the average soul.
Imagine being aware of BTC when it was 20 USD or less, being a member here & slating BTC saying it was shit & would go to 0, don't buy many/any coins & miss out on tens of thousands of dollars if not more.