Fired them an email asking for Bitcoin!
You'll just get an automated response saying they're keeping their eye on Bitcoin.
If you guys are really desperate to donate BTC, send me it and I'll donate them the cash myself
But yeah, they're foolish for not getting on board already.
That would negate the whole point, both Wikipedia and Bitcoin would benefit greatly from Wiki allowing BTC donations.
Bitcoin is perfect for charitable donations and that is one of the best uses (PR and morality wise) of Bitcoin. Bitcoin being associated with non-profits, as opposed to Silk Road and stuff.