hltv is different, im pretty sure atleast 50% are over 20 years old. theres still tons of 1.6 players on here and they are all over 18 by now. Also alot of people like me who are here for over a decade because hltv used to be the main page for 1.6, same as it is it now for csgo. Im 26 btw.
It just seems like its more kids, because even the adults on this page are still kids when it comes to this page(meaning they go back in their mentality to when they where kids). trolling, shitposting and baiting isnt just done by kids. Im pretty sure its mostly adults acting like kids.