It seemed because of complaints regarding race/gender diversity of speakers on twitter.
I think it started with this tweet: https://twitter.com/joshsusser/status/269844125363339264
I think it started with this tweet: https://twitter.com/joshsusser/status/269844125363339264
He's making this up in his own mind. Who's the real discriminator here?
According to https://twitter.com/Rebeccask/status/270220165344550912 sponsors pulled out. It's not mentioned at all in TFAA though, so I'd don't know if the explanation's legit (and why they went with a non-explanation instead if it is)
Sane people of different hues are probably doing something more interesting - reading Ruby books, writing Ruby code, or just having a life.