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There is an unused tag [grammer], which must be a misspelling for [grammar]. Moderators or anyone with enough rep, please make [grammer] a tag synonym for [grammar].
The tag seems to have been already deleted (automatically?), and nothing has to be done about it. Thank you to Bruno Rothgiesser for pointing it out!
It hasn’t been deleted: the grammer tag is now a synonym for the correctly spelled grammar tag.
There is, however, no glamour tag.