> If you went through multiple rounds it likely means they were seriously considering you but ultimately they didn’t get to a yes.

Sure, but one would think then the rejection email would have specifics around the interview and where the candidate did not perform well. Not nit picking on the job hops. If job hops were a deal breaker then why waste the candidate's time putting them through full rounds of interviews?

if you were an experienced/mature tech employee you should probably know that there are real HR reasons why companies are strongly advised not to give too much information in a rejection email. there is only ever downside. your reaction here is a potential red flag.

i'm sympathetic to you, it sucks, why cant we all be nice to each other, and my answer to that all is lawyers.

It could also be that they might be sued for stating the real reason so they went with something that would be dismissed if it went to court.

A friend of mine (in an entirely different industry) went through five rounds of interviews with a company and got passed over for someone internal.

A little while later, the same company reached out and encouraged him to apply again. Five rounds later, and he got passed over a second time.

Fast forward two years and they reached out to him a third time. He's basically convinced that because he's black he's their token DEI interview candidate to make them feel better about themselves while internally promoting the people they actually want, but of course they wouldn't actually say that.

This is the reason. If they make any statement you could contest it in court, so they don't make any statement

> … specifics around the interview and where the candidate did not perform well …

Takes time away from the day job and other candidates.