That's because people like personality, and the stuttering adds a lot of it.
The stammering thing. That's not how you actually type, otherwise, your Biography in the "About Me" section of your page would be in stammering form as well. The stammering adds personality, though, and that's what makes a good writer.
You guess? It was a sign of admiration. It takes a lot of time to put in the stammer, and by doing so you prove that you can write very good character dialog. You should be a screen writer or something.
I enjoy your stammering way of typing. Very humorous, and very entertaining. I mean that as a sign of admiration.