I don't think people were really jumping on you. The ad was misleading and you got called out. That's all there was to it. As for the grammar, I can see what they are saying. I'm certainly not the best in this area. I do, however, tend to notice glaring mistakes on sites that should have been caught right away. Remember, your site is the first impression of your business that most will get. Notice there is not a single period in your previous post, and you are very defensive. That is not someone that most of us will want to purchase from. Not picking on you, it's just a fact.
Oh, and that Jamie guy has great taste in t-shirts, but is a bit of an $$%!!...LOL. J/k dude