Watch tags?

How do I add tags to my ‘watched’ list? There was a little plus-sign next to each tag, but it seems to have disappeared…

OK, I’ve figured out how to do it from the ‘Settings’ page, but being able to do it directly from the image page was very useful. Any reason it was disabled?

@nyxabuse  
We’re going to be adding fancier tags so you can quickly add them to watch and different filters; part of that work required removing the “add to watchlist” thing for now.

Oh OK, I was hoping it was something like that.