The board would be better without all these grammar challenges, even where correct. After all, what is the point in being deliberately obnoxious ?
There might be exceptions where someone consistently makes no effort at all with grammar and therefore deserves criticism, termination of membership & finally 60 lashes.
For example, one deceased ex-member. The person I have in mind was banned from various boards, but always used to reappear with a new handle. He claimed to be a native English speaker, yet would write long rambling posts, with no paragraphs, full stops or any correct punctuation at all.