I'm not sure whether or not to approve some of these so I hope some discussion can bring out some ideas. Hopefully the original submitters can comment also.
Implication: gothic_lolita -> gothic
I realize now that gothic lolita is a distinct fashion style, but I'm not sure whether it should have any relation to the gothic tag, or whether an alias would be more useful.
Alias: group_sex -> gangbang
Are these two equivalent? For the record, there exists a groupsex -> orgy alias currently.
Alias: heart -> <3
I think the organ is a potential use for heart tag so I don't know if these two should be equivalent, or whether <3 should be aliased to heart.
Alias: kalashinokov -> ak-47
I can sorta see Kalashnikov being used for a name sometime.