The front page of the official LBP2 community website or an in-game front page ?
When you visit the LBP2 community page, you are faced with five buttons :
At the top, "My Queue" - levels you have picked from LBP.Me
Cool levels
MM Picks
Search
Other
"Other" takes you to a page where you can select from previous searches and played levels, or choose from highest rated (this week, month, ever), most played (this week, month ever), newest, lucky dip, etc.
EDIT: In short, it'd be an improvement to weed out lousy levels, but not enough to make sure all good levels get promoted. The basic problem is once the platform takes off, there may be "too much" (and too similar) contents generated.
Yes, that'll always be the way. There's only so much content that can be consumed. If people are making more than can be consumed, some will be left. The only way that wouldn't happen is if content is deliberately marginalised, so some content is not shown to other users, who get to experience other content. That is, let's say there are 10 great levels proving very popular. 10 more great levels are made by other creators. They won't get a look in with a current system. You'd have to divert some attention from the current 10 popular levels to the new 10, meaning the new content would actually get an audience, but the old levels will get less visit. 2x the levels at half the number of plays each. Of course the more good levels, to be fair the more distributed the audiences would have to be, and suddenly your trying to influence things which is somewhat preventing the culture developing on its own. 1000 great levels would mean no thousands-and-thousands of plays as they all get a limited distribution.
What if instead, they abandoned the whole popularity or ratings system with LBP2? What if you have to search or lucky dip? Outside 'marketing' would still work, so a Gaffer could post of GAF and get thousands of plays, but that wouldn't then automatically place them in a popularity listing to get extra views. You'd also still have the friend's lists, so people could follow the levels played and rated by friends. In essence, that'd move popularity to word of mouth.
That way the first page keep updated, and I don't have to look at levels I'm not or no longer interested in. And an option to manually remove levels from my first page.
That's a fair idea, and they could vary how the list is updated for users to select more personal recommendations, maybe, like if you have been playing racing levels or RPGs, it'd offer a selection with more of these.