I pride myself in good grammar, as should anyone with any sort of written proficiency in a language. If I edit the grammar in a page that you've edited, don't take it as a personal attack.
Grammar-related userboxes are here.
ANAL 4
This user advocates good grammar usage.
’s
Thi's user know's that not every word that end's with s need's an apostrophe and will remove misused apostrophe's from Wikipedia with extreme prejudice.
to too two
This user thinks that too many people have no idea how to use words that they should have learned in grade two.
Subj
This user prefers that the subjunctive mood be used. Were this user you, he would use it.
than then
This user understands the difference between using "than" and "then."
whom
This user insists upon using whom wherever it is called for, and fixes the errors of whomever he sees.