No, it is just one HNer's random comment
It gives insight into how some people think, and like I said I feel third-party embarrassment for them.
A cop could literally be a Jeffrey Dahmer copycat, and it wouldnt be generalizable.
In this specific case there is zero evidence of criminal wrongdoing
None of that by itself means I should judge a given cop, let all of them, or not talk to them.
Replace "cop" with "black" or "white" and you see how absurd this binary thinking is.
The actual world operates on scales of grey.
There are a million cops in the USA. Some are good and some are bad. Dont talk to cops if you are holding drugs. Do talk to cops if someone is breaking into your house or sexually abusing your child.
So no, obviously, woman goes on date with a cop and ends up dead isn't evidence of all cops being of a particular demeanor, any more than a police chief misusing a camera is evidence of cameras being bad for freedom. But Flock cameras are bad for freedom, having a huge potential for misuse. And cops have a huge propensity for domestic violence and dangerous behavior towards their partners. Ample evidence exists if you care to look.