Despite the content, bashing someone for the wrong grammar (it's vs. its) is as poor as it can gets.
This is an international forum with people from America, Europe and Asia, and very often English is not the mother tongue.
I have seen this a couple of times now and wish that would be stopped. I mean, I don't object to a polite correction of misspelling (even though it won't distribute any useful content to the topic), but the way dotcom has responded was clearly connected to his aversion to the OPs topic or opinion.