Well, it's already a pain to go through the "latest" because there are so many spammy, unfunny memes there that I don't even go there anymore... Honestly, there might be a lot of actually funny and well thought out memes in there that you just never see because they get drowned in a pile of rubish. I think with more submissions allowed it would only get worse. It would end up being so overflown that everyone would only check on the people they follow and the smaller streams.