So I admit, I can be a cowardly commenter.
I don't know exactly why, but there are some blogs where I am intimidated to comment, even though nobody on that blog is particularly intimidating. I should know, too, as a blogger that unless you are trashing the author, comments are almost always appreciated. I always get a secret thrill when reading the comments people are nice enough to leave. You like me, you really like me!
So what gives? I am not what I would call shy, so it isn't that.
Sometimes on the larger blogs, people have already kind of said pretty much everything there is to say about the post. My comment would just be sort of a "Yeah, what they just said!" type, which I dislike to do unless I know the person.
Or perhaps I put too much pressure on myself to be witty and engaging in my comments. I really do try to be entertaining, and sometimes if I can't be, then I just consider discretion to be the better part of valor. Is that a bad thing?
Perhaps it is just the risk, the uncertainty of sending off your personal thoughts out into cyberspace, usually never quite knowing if the author had a little chuckle, or if they immediately hit the "delete" button.
Just know that I pretty much never delete comments.
Unless you are a certain person from Texas, and then sometimes.