I fear I see the fragmentation of the site. I saw how much it hurt Voat. Having five subfoxes for one topic means that neither of them will get enough activity and discussion. I suppose many people create one sub of their own and contribute only to it, and it hurts making of the community. Furthermore, when person who created five or ten subs quits the site, we have five or ten modless, orphaned subs on the site.
For example, we have so many music subfoxes. Why do we need /s/listentothis when we have /s/music as default? Was it just somebody wanting to be a mod? Did they already decide that /s/music is too mainstream with three or four posts a day?
We should limit the creation of the subs. I think that if user could create one sub per 10 levels, it would insure higher quality and dedication.
Well there was a limitation to lvl 5+ could create new subs, but that was decreased to lvl 2 now, as far as I know the only level restriction in place. I agree with your reasoning on restricting the subs and support the creation of overarching general multisubs for topics like, s/music s/scifi and now s/food. Restricting it per every 10 levels dose seem a bit harsh though maybe a sub a level or two levels but every 10 would be pretty hostile to new users.