Is ok mate, it's unusual to see a 6 year old post dragged back up! My take 6 years ago was if you are doing a website for no monetary return then just do it for the masses. I was obviously doing cross browser six years ago but getting paid for it, which makes a difference. Nowadays with your i-Phone, Android, tablets, notebooks, notepads, Safari, Chrome, 83 different flavours of IE, Firefox, etc., etc., etc. things have become a bit of a minefield! But for a voluntarily built website I'd still try and cut down on all the different technologies as much as possible.