They've been saying Bitcoin is a bubble for a decade already and then bitcoin is going to die. They weren't just nobody but well-known individuals who had been in the finance industry for years comparing it to the tulip bubble. Now they look at themselves being the joke after bitcoin keeps breaking its ATH. I think some of them already admitted they were wrong.
Some people just can't understand what Bitcoin is and where its value comes from. They look at it like it should be a real coin and then find out they can't touch it and there's no maker they can blame for all the problems and it makes them confused
I say ignore them and keep going. You don't invest for them but for yourself.