You know one thing I hate more? The first is the fact that I can't leave two spaces after a period.
To answer your question, if the comments regarding your spelling are left with the intent to help you, I think you should acknowledge it and thank them. Correct spelling, after all, is one of the essential factors of proper communication. However, if the comments are rude or in the form of an argument, they are probably a troll or a mean person. You should just ignore the comments if it is the latter case.