I need to do this myself. When my Nude Day contest entry was posted I saw that it only had one tag: "Hot Wife".
I know I entered ten tags, all related to the story. Hot wife isn't really descriptive of the story or the wife in the story, at least not in the Literotica version of hot wife.
I submitted a bug report on it, but I'm assuming that I'll have to do an edit to get it changed. I'll probably do it after the contest has been over for a week or so.
The only thing I can think is that at some point during the submission process I somehow deleted the tags. It's the first time I've used the newer submission form, so possibly I did it wrong, although I did remember to separate the tags by commas. Who knows. accidentally dropping a thumb on my touch pad has made weird things happen before.