The UX is just so much better in every aspect. UI is clean and (mostly) intuitive, but more importantly, supports alternative frontends and apps offering better and personalized UIs. There isn't a half-dozen roadblocks and annoyances put in the way of accessing content, like VPN-bans and ads. There isn't even a particularly high-bar to join and participate, so no worries about entering a phone number or building up karma.

I can just use the site. Now all I need is content thats actually relevant to me.