Normally I'd be the first to agree as I think the snobbery around grammar and spelling on MN can be awful, and no doubt puts a lot of people off posting their problems.
But I don't see how that thread could be taken personally by anyone, as I don't think I've ever met anyone who hasn't at least heard one thing wrong, or misunderstood what something's actually called.
Most of us can laugh about it and ourselves.