From experience searching for jobs in the last year it seems to be exceptionally rare to get any sort of feedback after an interview - constructive or otherwise

From experience searching for jobs in the last year it seems to be exceptionally rare to get any sort of feedback after an interview - constructive or otherwise. My guess is that this reticence is mainly due to the laws surrounding employment, since it costs practically nothing to send a brief email. If anything which was written as part of a response could be construed as being racist/sexist/etc then in theory the company could face lawsuits. Also in the current economic situation some people might react badly to a negative response, especially if they have made exceptional efforts to get to the stage of having an interview.