I do it mainly when I have trouble sleeping, it's just a way of passing the time, a wretched way I admit, but meh. I hardly ever put thought or consideration into my answers and am prone to spewing out venomous invectives now and then, and opinions which are laughably exaggerated and not always representative of my beliefs. I'm a stern atheist and love a good debate, but I realise that name-calling and eye-rolling are hardly constructive methods. It seems like a lot of people on here are just major procrastinators and/or insomniacs, am I right? Or do you genuinely come here for mental stimulation?