Hey, to whoever may be paying attention: I've created a wiki, called Uiki.
http://uiki.space
It's not pretty, it's not fancy and it is "featureless" on purpose. I just want a place to go without thinking too much about whatever, it's just supposed to be there, be really fast and simple and render Markdown. No frills, really.
Take a look, if you want.
(It's still beta, so please don't rely on it to persist really important data.)
