I'm in the 7000-9000 range now, and so many levels just make me want to cry. So here I go again moaning and crying. It won't be long until they will all disappear. I give these levels less than a year. Some are still good to play and fun and intelligent, but so many have been made pointless and ruined to the point of where even I would say "Just let them rest in peace now. Kill off the frog and kill of these levels which have just been rendered pointless either by the fish or the lack of comprehension by players bred on the new "bash the hell out of the board" method, who just get stuck and then the AI will make the boards easier because too many players will get stuck on levels they can't win with double colour bomb combo.
I will give some examples.