Aliasing sporty → invalid_tag
Link to alias

Reason:

A subjective tag that doesn't seem to be tagged with much consistency:

It seems to be a loose amalgam of different sports and exercise, sports clothing, muscular characters, and other random posts.

Eh, I'm not a fan of invalid tags, hard for original tagger to know what he/she did wrong and pretty much inpossible for others. I know disambiguations are rarely fixed but atleast it's possible.

I'd prefer disambiguation, although I know it's not great either.

I wondered if a disambiguation would work better as well, but felt it would be unnecessary since sporty isn't used much. Though I do suppose disambiguation may be preferable if other folks feel the same about it.

is so ambiguous that it's hard to tell what the user was trying to tag, and that makes it difficult to sort. So I'd go with invalidation in this case.