Her other blog posts are perfectly credible, and she comes across as a somewhat harsh, and typically cynical sysadmin...
...from which most of the things you've quoted follow pretty naturally, whether the author is male or female.
You're right, you don't need to mention sexism to make any judgements. So why should we assume that sexism is to blame when people dislike her? I've disliked most sysadmins that I've interacted with, regardless of sex, and that includes myself, when I've been forced into that role...it's a shitty job, and while somebody's got to do it, we never like the "assholes" that end up complaining to us about how our dev practices affect ops people. But the rest of us don't try to pin that on X-ism, we just accept that it's an unpopular position within any company...
...from which most of the things you've quoted follow pretty naturally, whether the author is male or female.
You're right, you don't need to mention sexism to make any judgements. So why should we assume that sexism is to blame when people dislike her? I've disliked most sysadmins that I've interacted with, regardless of sex, and that includes myself, when I've been forced into that role...it's a shitty job, and while somebody's got to do it, we never like the "assholes" that end up complaining to us about how our dev practices affect ops people. But the rest of us don't try to pin that on X-ism, we just accept that it's an unpopular position within any company...