It's for posts about Interior bathroom Design and Decor. It's a separate Posting Topic, which you can see by clicking the "Topics" link up top.
:0)
The air is absolutely FILLING with free electrons...
LOL! I asked the same question when I was new here (not that long ago) and got alternately clobbered and answered kindly.
So... as another newbie, I'll tell you what they told me: Vanities are posts that are about yourself and not really about the news, such as your opinions. And... this is the real kicker... they are highly disliked, frowned about, and can get you a good trashing!