What an oddly aggressive tone x) It's not "my" Zed's selling point because I don't develop or even use zed daily atm. But it's also not the selling point period, it's one of them, the others being e.g. performance, responsiveness, and low memory footprint, as well as integration with tree sitter and LSP.
Not sure what you mean by gamification and social, we're talking about collaborative editing, not posting to twitter lol