Capitals & Comments

Once upon a time I used to write my comments in all lowercases which I thought was a good idea because it looked casual and none-threatening. Then I got a rather rude comment (on another person's blog) about not capitalizing my sentences coupled with other not-so-great forms of expressions and that's when I started commenting with capitals. I like to say thanks to that person for making me feel like crap for a couple of days and also, screw you. No, I don't mean that. Okay, just a little bit. I may be forgetful, a bit too honest but I never start fights but I'm not a saint. I'm sure I didn't say anything that deserved such respond but people can be sensitive even by the tiniest thing so you can never predict how you can offend someone even if you did and said nothing wrong. I usually do not respond to such rude comments but I didn't listen to myself that time. If you don't like a comment, delete it, ignore it or simply pretend it doesn't exist. Don't engage - that's really the only solution. 

What do you do when you encounter a rude comment?