It may have taken over 5 months but I've beaten the elusive level 20. While it did take a lot of grinding the small changes they made to the level boundaries did help a bit (only by like 1% though).
I'd given up caring at around the 30% mark as it was taking ages but when I got around 90% I started to be interested again. To be honest I don't really care about levels but it's nice to be rewarded for using the site.
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On a side note I found some exciting racoon related news: a Left 4 Dead mod which features Racoon City from the Resident Evil series. It looks pretty cool and I think I'm going to have to check it out just for the name.