I think that the real problem with tileset overusage is actually a lack of originality. I mean, if you've played a hundred levels with the Carrotus tileset and you make a level with that, about 95% of the time you'll end up subconciously taking ideas from the 100 levels before you. And if you make a new and original twist on an old tileset, it tends to have a certain "Wow!" factor. Unfortunantly, it quickly gets knocked off and becomes an overused aspect of levels.

Think about it this way: The biggest victim of overusing is any Epic tileset. However, one of our best rated levels, Termite Heaven features HUGELY original eye candy. Combined with solid gameplay, it becomes an instant winner.

An overused tileset can't break a level if it's of quality. Nuff said.