Having just become the mod of another community, I've been extremely tempted to attempt to write an auto-tagging program, something that will automatically scan a community and fill out missing tags. The last time I did something like this was way back on LJRP some seven years ago, so I don't know precisely how easy (or even doable) it will be to actually do, but I'm certainly intrigued into seeing if I can make it a thing.

If I get anywhere close to that, I'll let you guys know.