I can confirm that most of those simmers deliberatley bypass the filters to showcase the cc in their creations. The filters are not broken.
I know this because I have talked to a few of those creators on Origin and they say it is quite easy to do and they do it as they prefer that look on their sims. There are a couple of gameplay downsides that go with it however but I think those people mainly use the gallery instead of playing the game.
Now, I personally don't agree with what they do (even though some of them are sweet as pie to talk to) as I respect the filters and 95% of what I upload is nocc as that is my taste. I also suspect they think they will get more downloads with cc obviously shown and that has often been proved correct. Just check the most downloaded in the last 7 days like @elisabetta pointed out. My no cc 'Nabila African Princess' is on that page by the way! No cc can be beautiful and popular too!
There are apparently two ways to do it but I'm not sure if I should write on here what they are as it might encourage others to try it. I am also sick of the pregnant children and teens on the gallery and try to flag them when I see them pop up. Hopefully Maxis will come up with a solution.
