As of right now it's really REALLY small and I prefer looking at the preview and having that 0.5 second delay until it shows up than looking at the original text. A good example of how it should be is in the new discussion text.
EDIT: For those of you who have no idea what I talk about: http://i.imgur.com/vezrpLq.png
The comment text being small is a bug that we will address. I'm more concerned about the half second delay you see. Does it really feel that sluggish to you?
I am typing a comment and noting the delay as I type. Huh, I guess I never realized because I actually look at the box that I'm typing in. But yes, can confirm there is a small delay. More testing When you are typing faster it is far more obvious. As an example, hold down a key (any key except spacebar or enter) and watch as the characters do not appear until you let go. If it helps: I am running Chrome on Windows 7.
