"The problem with this woman's story is that she takes a few cases of explicit sexism and extrapolates them as the reason why everyone is saying rude things to her. Or at least that's how I see it."

Yes, that "because I don't see it, it doesn't exist." attitude is a definite problem.

"She says "I’ve gone from being a Facebook user to running OTR, PGP and Tor all in under a month." Perhaps she is not as knowledgeable or as experienced as she thinks she is, and so she is receiving criticism from those who know what they're saying/doing."

This however seems more plausible, no kneejerk dismissals necessary.