I agree with you at some point.
Imagine you hear about bitcoin on media and decide to make some research on the web to know more about it. You surely find about bitcointalk as it comes a lot in the SERP for some queries. Then you say "oh bitcoin has a forum, great! let me read"
After 1 hour you figure most of them are always telling bitcoin=moon! bitcoin will be $50k in 2 weeks hold, buy buy buy! Rich soon!
You also figure that most of them are under 18, housewife, don't give a fuck to bitcoin, but just want free money. you see that they make no sense posts, with the same question popping every day. Telling to people to buy bitcoin but never do themselves, why should they, they don't care about crypto. They just love rehashing the same question and answer all day long
I tell you this, it's not about racism, I tell you it because I have a friend who didn't know about bitcoin he ended here and started to read, the next day he told me "bitcoin is just for children in sandbox so they can buy video games, I don't want to look more about it"