I've never hit mine. Back when shuu was still growing, the upload limiter was not in place yet and many many images were free to post like the one below.
We were also much more lax on image quality back then.
Most of my images came from surfing japanese websites (pixiv and tinami didnt exist back then! zomg!) and the occasional scanned artbooks.
Sometimes, there was the odd screenshot, like this one of Satsuki from Kagetsu Tohya. You can pretty much see the things I was watching/playing at the time from my posts.
And of course I have also posted a lot of these.. but they hardly contribute to the daily upload limit as those are usually made one at a time.