Mythic+ Guilds

Hi, Since mythic+ are a very popular part of the game now, i'm wondering whats community's opinion on mythic+ guilds where people would create groups to push high keys instead of raiding. I'm not a huge fan of raiding personally, mostly becouse its very time consuming and doesn't feel rewarding to me. Is this even a real idea since Communities were added (had this idea in Legion)? Have You seen a guild like this?