There actually is kind of a way to review new tags. Users with more than 10K reputation have a "tools" page that shows, among other things, the most recently created tags. Those can be found at the bottom of the main stats section. It shows how many questions have each tag mentioned, and as one would expect, clicking a tag goes to the list of questions tagged with it.
I just destroyed the poe tag by retagging its one question with the existing power-over-ethernet tag.
It's worth noting that on Stack Overflow, the "create tags" privilege requires 1500 rep, while here it only takes 300. If we can show that we're getting too many pointless new tags, the moderators can petition Stack Exchange to bump up that privilege level for us. (A lot of the bad tags we're looking at are fairly old.)