You can, but I wouldn't recommend it. Women already have it rough in the tech field (in many places) and you need to consider how this could be perceived.
Having an anonymous blog because of harassment could be perceived that you're afraid of criticism or that you're weak. Women already have the (incorrect) stereotype of being overly emotional and weakness. That's why a man is called assertive and a woman is called a bitch. It's the common double standard.
There is a compromise between anonymous and fully public. Your id is c_maker so I'm going to make up a fake name based on that.
If you're name were Christine Maker, you could start a blog authored by Christine Maker. You could also it GirlEngineer. There's a third alternative. You could put yourself as the author as Christine M.
What that does is make it easily identifiable in that you can say that it's yours and any employer will make the connection when they look it up. Also, it's not completely anonymous so there's no possibility of being perceived as actually afraid.
But here is my unbridled honest opinion. Own it. Put your name and take the lumps. And when someone challenges you, you nail them to the wall because you know you're right. You're strong enough. Don't let anyone make you feel like you have to hide. And if the comments get too vulgar or become personal attacks, remember, it's your blog and your house. Delete them.
(I want to be perfectly clear that my characterization of stereotypes of women are not my own opinions nor do I want to suggest that it's ok. Unfortunately they do exist and unfortunately, women also have to deal with them. I happen to love strong women and married one.)