This user understands the difference between its and it's. So should you.
’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.
whom
This user insists upon using whom wherever it is called for, and fixes the errors of whomever he sees.
This user does not exist. However, if this user begins to exist, seek shelter immediately.