What do you use the site to search by category? (hardcore/latex/wife, etc.)

I am interested in this question too. And what can be done? Tags? But how do we tag old posts?

I had an idea, that for example level 5 above users can comment posts with tags.. And all tags are picked up from comments and post itself, merged and you can browse like that.

So for example:
#blonde #glasses #latex = This post is hooked with these tags forever.