I'd get used to feeling discouraged because this is the reality of competition on the net. As someone's already noted, a couple of sentences is more than you'll get from most people who just look and then dismiss it. There's great feedback to take from the original comment even if it's short - if you have a point of difference, it's not obvious.

FWIW, I also viewed it, thought 'what sets this apart from all the other alternatives?' and then left. I think your design is really loose. Other than that, I use a snippets function in my text editor and the things that doesn't cover aren't enough to warrant using a site like yours. There might be some advantage I'm missing though?