I have quite a lot of interesting tags, and from time to time over the last week or so I notice that one or more have disappeared from the list. Then I add them back in. I think this started happening at the same time as the extra pop up menu over interesting tags to uninteresting them. I think I am accidentally clicking that. Is there a way to suppress it? I was ok with the red X next to the tag and the extra menu is distracting at best for me, and might be causing this "oops I dropped a tag" situation as well.
This is how they look:
I don't think I have greasemonkey. Not on purpose anyway.