Is there any special reason for its existence?
I can't think of any use for it. What do you think? Am I missing something?
Excellent point -- I deleted the tag and added it to the tag blacklist.
(we also ban the "apple" tag on apple.se and the "android" tag on android.se for similar reasons of redundancy)
However, there are now 23 questions tagged untagged which means wordpress was the only tag they had. We'll need some help retagging these.