According to 80-20 rule the minority of people will do most of uploading. When I was on Voat, I sometimes found a lot of interesting content fit for one subverse, and could not upload it. As I did not want to wait for an hour I either posted it on sub that did not quite fit, or gave up.
These rules have a side effect of lot of good content not being posted. And we need good content to get a good userbase!
Maybe we can make tiered user types, like "normal" user with normal restrictions and "poweruser" with way less. Maybe even "VIP" level with almost none, plus can mod extra subs or even see votes in their own subs.