Might have the big dumb
Honestly it’s both valve’s fault and the legal system. They’ve tried to combat these sites with the trade window system back in like 2015 2016 I think, but their csgo and tf2 trading economy struggles when you have to wait a week to do stuff.
It also doesn’t help when a lot of these sites dodge being legally a casino, and get away with it.
10 years ago was like back when hallowed armor was endgame and mech bosses were the last bit?
There’s so much more content now that honestly makes the entire progression completely different
Theres also a wealth of mods now that acts functionally as a whole new game as well (calamity being the biggest one)
Considering the outcry from mobile auth back then, I dont think valve will ever try for id check.