I ran into some computer issues a few months ago and nearly lost my entire UNO stash. It was one of the scariest moments in my life followed by one of the greatest. Don't be too lazy to store and backup your coins OFF EXCHANGES.

Also, Benefactor gave me an extra kg one time during a trade (it was a while back). I just wanted to say thank you for the generosity, and I assure you it will stay amongst the community