This is something I didn't really understand when I was younger.
In every online community that has had some amount of hype surrounding it, there are prominent figures either hyping it up further or spreading doom and gloom when the metrics don't match their expectations.
What I didn't get when I was younger was that this doesn't need to affect me at all. Unlike the people mentioned above, my financial or reputational interests don't align with the size of the online communities I participate in. For me it comes down to "do I enjoy participating".
If you aren't an advertiser, streamer, content creator or anything of the sort, you don't really benefit from hype, growth or any of those things. So don't let these things affect your enjoyment of talking to people online or playing video games with them etc.