Sometimes i'm bored and feel like posting a bunch of images for a while, but after that, i have to wait a day for them to be approved. It's not usually a problem.

Anyway, does the limit increase over time or anything like that?

bigger upload count increases your upload limit

Yes, The upload limit is dynamic. The formuoli is

limit = baseCount + (approvedPosts / 10) - (deletedPosts / 4) - pendingPosts