[smc]

Originally Posted by curiousguy221

... so... how about 'Grammar Obsessive' then

It's not clear whether your question/suggestion is posed in response to my post, but I will say that in my opinion Grammar Police more clearly articulates the point you are making. Police take an active role in "correcting" the behavior of others. Obsessives may do so, but are more likely to exist in their own little worlds. Whereas a member of the Grammar Police may contact the symphony manager to inform her that there was a dangling participle in the program of last night's concert, a Grammar Obsessive may simply revel in having found the dangling participle, or perhaps sit in his seat unable to enjoy the music because he is obsessing over the dangling participle.