I once applied for employment at a rather dodgy firm. Cancelled the interview though when I looked online and saw what people had to say about it.
why do you always press the tab button when you make a post
It's five space bar presses, actually. To answer your question, I do it as a matter of tradition at this point. I think I used to have an actual reason, but I can't remember what it is anymore. I don't indent on any other site that I post.
Since you've made 22,000 posts, that means you've unnecessarily pounded the space bar over 110,000 times. Your keyboard is a trooper.
