At the end if the day, no one is obligated to play with anyone, and it costs nothing to make your own posts. I don’t know the context, but for something like a normal mode dungeon, I take most anyone. But for something like Pantheon, a GM, master/contest raid, etc. there isn’t anything wrong with not inviting Joe Shmo who has barely done anything endgame and barely has any sort of build. Also, a vast majority of players who would consider themselves elite aren’t even good (i.e. don’t even interact with/struggle in actual endgame content).