Creationist Explains How Humans Could Have Hunted The Tyrannosaurus Rex

It's not like the OP drove to Mastropaolo's house, took a picture of the man and posted it here with the headline "Look at that moron!"
This guy went to the public to talk about his ideas, so it is legitimate to discuss those in public, be it approval, disproval and everything in between. Yes: Mockery is also freedom of speech.

If you look at it the OP is no different from someone posting an opinion piece by Wade Churchill or Glenn Beck and saying "look at what these people "think"".
The only people who would be actually offended are those that share the views being expressed, so if they want to try and defend those views go ahead.

I think the real problem some have towards the issue is the complete ease with which creationism can be taken apart using only the "evidence" they use to support their position.
That ease is what makes them so passionate about "attacks" on their views and so eager to go into outrage mode.