Well, tag cloud becoming a graffiti wall means that the tag cloud will have "lol" "fag" etc etc, in time, which gives it the appearance of a kindergarten game forum.

Not that it's bad, may forums have this and do just well, but it's a pity since most of the forum is quite grown up.

Useful tag is already buried under all-too-common tags, like "N900", then the typos, then the too-specific, etc. reducing the tag cloud from 100 to 20, most in very small script.

I do, however, see a solution to this half automated (no tags get in the cloud under 5 threads) and part manual (mods can ban tags that get through, like "worst thread ever").

And by "ban" I mean "don't show up in cloud".

A(n) UI that suggest tags when adding would also help with tags in general so "PR1.2" and "PR 1.2" wouldn't fight.