The "4chan crowd" usually only needs some token amount of motivation, and a target. It doesn't matter of they care about the 'core values' at stake. IIRC, in the case of Adria Richards, it was posted somewhere on 4chan, and that's when things really took off (at least in terms of volume). The '4chan crowd' really only had to take offense to her 'name and shame' attitude, without caring about the larger 'sexual harassment policies at tech conferences' issue.