Currently we have a min. of 300 rep points, which is imo too low. In nearly every Q someone starts getting "creative" and adds a tag.
This is annoying, as it makes it close to impossible to search the tags if I need something.
Currently we got ~1.000 tags - which means that we got 10 Qs per tag. When you sort tags per popularity, then we got around 1/5th (200+) tags with only 1 Q tagged. The next is ~100 tags (1/10th) having two Qs attached.
Sounds like there's no possibility to actually delete tags. SO/SE-Team: This one's really missing. Else tags would clutter the page and be unuseable in about ... already now.