Someone asked, so I (as a Wikimedia communcations volunteer) asked how it was actually working out for us.

Official answer (which I've verified is OK to make public): ~$220,000 so far. ~$140,000 was in one huge rush in the first week (in August 2014), the rest in the time since then. A few, myself included, were surprised and pleased it didn't drop off after the first week.

Fundraising staff have previously noted that a new funding channel isn't worth setting up unless it attracts on the order of $500k/year, but we still take Bitcoin, so if you don't want the shame of still hodling, send 'em our way and we'll keep giving you the BEST ENCYCLOPEDIA EVER!!