I think this article provides the best explanation about the deep seated misogynistic mindset prevalent amongst nerds and nerd centered websites (especially Reddit and TRP).

Here is the article in quesion

Although it's kind of long winded and makes references that only the most devout nerd would understand, it basically says that nerd culture teaches nerds that their social inadequacy will be rewarded in the future with hot women.

When they realize this is obviously untrue (I.e. Take the red pill) they turn on women and shun them for simply turning them down and selecting fitter men for sex.

Although this article is over 2 years old, it's more relevant now than ever. It explains Reddit's growing slant against "slut"-shaming