Argumentum a Verbo Carpe

From Latin: Argument from misspelling of word

Dismissing an argument or statement on the grounds that a word or more is spelt incorrectly instead of the argument presented itself. A subsection of the Red Herring and Ad Hominem fallacies

Person A comment: According to the link you oosted, this doesn't support anything you say.
Person B Comment: Seriously it's posted, learn how to spell.
Person A Comment: Argumentum a Verbo Carpe. Instead of focusing on my typo, try to address my point.