Start implementing custom subs by creating some primary subs and choose some users from sn to have admin previlage (eg: @grayruby > sport sub ...)
This will give statistics of how user generated sub will perform and you can experiment with this by time (sub with many admin, sub subs..) until we reach the best implementaion
I have a suggestions :
(sub with many admin, sub subs..)until we reach the best implementaion