I tried to propose a tag synonym for ww2, but I received the error "Only moderators can propose version specific synonyms". I thought after 1200 rep, you were able to propose tag synonyms. Does anyone know what this means?
Looks like we have a bug with detecting tags that apply to different versions of software - an artifact of the Stack Exchange platform being born out of programming Q&A. :)
I've passed it up the chain to the dev team.