I like that community tags exist. A poster may not know about a commonly used tag in a subject, or the comments go in an unexpected direction and the community tags can lead others to the thread who would overlook it based on the original title and tags.
It would be nice if they weren't anonymous. Everyone should filter or block each other like civilized assholes instead of making tags like that.
Does anyone remember how community tags work? If multiple are added, does the tag with the most suggestions get posted? I added #communitytags.