Dyrone said:
Someone will eventually clean it up, and in the meantime it's not like it's hurting anyone.
I can't recall any instances where this has actually happened.
At best, someone maintains such tags for a while, then either quits the site or just gives up. And then it quickly becomes a mess that nobody wants to touch. If the tag is bad to begin with, maintenance is just a temporary solution.
Leaving tags alone and hoping that someone will fix them simply does not work.
The old tagging projects thread is full of examples: tags that everyone has given up on, because of the overwhelming volume of work that it'd take to fix even a single one.
Updated by anonymous