Easy to assume they do good work while being a little...well...zealous with their ideology. It actually was a surprise to learn they're zealotry isn't about the animals at all, but purely a product of their self-righteous vegan superiority complex.
Surprised me, at least. I foolishly believed, for a long time, they could be just as dedicated to their work as they are to creating the image of an organization dedicated to their work.
Turns out, you really only have enough time/resources for one or the other.