There's different kinds of people who fit into this group, here's a few.
A) Old-school Pro. Whether or not you can't play as well or compete with the current generation anymore, you were part of the circle in the earlier days.
B) New-bloods (that have been accepted) seeking to actually improve their game. (usually train with or directly under other glads)
C) Top-tiers, setting the bar high for other people to try to match. Forcing the community to always improve is important as it keeps the competitive spirit alive.
You are seeing limited info because this group is private.