well he did say
"Anyone else is welcome to join or start an effort like this and we will give them suport where possible." I'm talking about strictly joining the mappers guild, not everyone is welcome to join it, and it is supported by staff via > giving their own channel in X discord server related to staff, badges for people in it
also its been pretty exclusive about who joins from my and many other "qualified" (via the standards they listed on their first promotion post after going public, lol supported by staff before being public xd) people's experience(s)
however I'm also not very keen on dibs etc for a group of mappers, why not just promote it to everyone? unless that's already the case... dibs is in reference to the albums being released to the Mapper's guild before anyone else can see them for FA, they end up pushing maps for ranked internally(being within the guild) before any other mapper can access the FA music.