We have two author tags like this:
- grrm (3 questions, fairly new). All three are related to GoT/ASOIAF.
- george-r-r-martin (190 questions)
I don’t have the necessary rep to suggest the tag synonym, but this seems like an obvious one.
I've deleted all the grrm instances, so that tag will be destroyed on next auto-cleanup. There's absolutely no need for it.
A tag synonym would make sense if it re-appears. As it was, the tag was created by a single user, and hopefully he'll get the hint and not add them to any more questions.