> How many offers did you receive? Companies have also adopted your strategy: interviewing candidates "to see what's out there" - there's a job I interviewed for that's still open after 10 months.

On the hiring side, at least in tech: interviewing really sucks. It's a big time investment from multiple people (HR, technical interviewers, managers, etc).

I'm not saying it's impossible that companies are interviewing for fun, but it seems really unlikely to me anyone would want to do interviews without seriously intending to hire someone.