Using "-" instead of "_" goes against a very established tagging practice.
Only for whitespace as far as I know. So I don't see a issue here. I would even say using _ is wrong.
e_cigarette => "e cigarette" e-cigarette => "e-cigarette"
The wiki page is very recent with only two contributors. I wouldn't be surprised if "e-cigarette" in the db was also contributed by no more than 1-2 mappers. I suggest contacting them to make sure that they are ok with "e_cigarette", and then make the change to wiki and db.
I just created the page, because the tag was used (TagInfo), but not documented. See:
http://wiki.openstreetmap.org/wiki/Category:Undocumented_Tags __________ openstreetmap.org/user/AndiG88 wiki.openstreetmap.org/wiki/User:AndiG88 _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
