@Craven de Kere,
Okay. So you're basically saying that the tags are some kind of community tool - if I tag a thread "abkhazia", and several other users do the same, it'll eventually show up higher in the, uh, "tag cloud"... or so I'd guess.
Makes sense to me. Also, I'll be able to find it really fast, 'cause it'll live somewhere in my personal "tag cloud", under the tag "abkhazia".
I guess what I don't understand is that you're encouraging people to, well, misuse
For example, if I see an interesting thread about Abkhazia, and I just tag it "bookmark", it'll show up under the "bookmark" tag in my tags. But it'll also rise up in the community tag cloud (or something like this.... whatever the bonus for the community is that my tagging a thread triggers) - along with all the other threads that people have "bookmarked". In the end, the tag "bookmark" would be really high up there in the community tag cloud, without having any relevance for the user whatsoever.
I don't quite get it, I guess. Maybe I'm just missing something here, though.