> I wish there was a way to report bad interviewers.

You can always tell the recruiter/coordinator. It's just tricky because you don't want to burn bridges, doing it before you hear back could be read as you asking for a do-over, doing it after could come across as bitter.

We are hiring at my company. We ALWAYS value feedback. Last week we heard someone had a bad experience and the feedback was taken seriously, and without resentment.

If you have a good or bad experience, PLEASE consider telling the recruiter know.

Recruiters don’t care. I’ve had some of the rudest interviews recently and complained to the recruiter and they completely ignored me.

Depends on the recruiter and their relationship to the company.

Some companies will ask for feedback after the interview and there's sites like Glassdoor.

The last place I did interviews at, we'd bring all interviewers into a quick debrief meeting and talk about whether to give the candidate an offer (going off the notes we took during the sessions). It was pretty obvious if someone had a particularly bad session and could be weighted against other peoples' input

Unfortunately it can be really hit and miss

there’s a site in Russian, ebanoe.it (translated: f*cked IT) which does exactly that!

You can (and should) report to glassdoor. At least forewarn other poor souls.