What other forums are interesting/addictive

Besides here and Reddit .

Looking for another forum to add to the list

 

I visit Quora sometimes. Some really cool stuff on there. But usually it's a lot of time wastage, and sifting through heaps of uninteresting posts.

 

The issue I have with sites like quora and reddit is that it's so easy to find pornogrpahic stuff there. And for me, written stuff is my main problem and I've found a lot of it on Reddit in the past. So I pretty much just stick to here.