I interviewed with a quite promising company beginning of December, only to immediately get the written feedback (after the first call) of
"Well I know a lot of SWE in this town and none of them are struggling to find a job - so if you've been looking for X months, surely there's something wrong with you - and anyway, we've already signed a contract with someone else in the 5 days since we last spoke."
(To be fair to them - I had mentioned how frustrating it was to simply get "no" as negative hiring feedback and asked them to elaborate if at all possible)
I take it as a "well, bullet dodged" moment, but I am not going to lie and say it didn't sting.