Scenario Spamming

I don't really see how this is a problem at all - it happens once in a while and when it does, it's the direct result of a class of students uploading their work for the world to see! It's a far cry from what I'd call spam, which would be someone repeatedly uploading lots of scenarios that just advertised their products / site / blog / whatever else. OK, the scenarios might be similar but as pointed out they're not the same, each one will be slightly different depending on what that student decided to implement. And while that might seem like an insignificant difference from the perspective of someone who's been programming for a while, to them that could represent just as much work as you creating a "better" scenario from scratch. With that in mind, why shouldn't their work appear on the front page for people to see? As has already been said, perhaps the best thing to do is take a look at some of the scenarios, see what they've done differently and provide some useful feedback - then as they learn, they may post more scenarios you find more interesting!

yedefei, we do have a finite amount of disk space, yes. But most scenarios don't take much space, and we are a long way from running out of space!