Everyone obviously can do whatever they want, but I really don't get when people, especially regular or semi-regular posters, delete their accounts over very minor altercations everyone would have forgotten about in a day or two if they were even aware of it in the first place, especially considering it's impossible to create a new one. I don't remember what it was exactly anymore but this last one went as far as changing their username to something generic like "abc123" before deleting, and over something totally inconsequential too.