I’ve always found the who’s hiring threads to be interesting. I don’t think all of those companies are actively hiring, but rather like to look like they are for some reason I don’t understand. My reasoning is two fold: I applied to some a couple years ago while job hunting and got worse response rate than most other sources. And some seem to be hiring for the same position for many months in a row. Though the second reason could be due to having extremely high set of requirements, but is usually a sign of a company to avoid in my experience.