Just like everything in this world someone point out his bad experience and then his opinion become famous and everyone generalizes because it gets a lot of attention. And worst, the comment section attracts all the people that had a similar experience making it even more biased; so it gets a lot of more bad press than it deserves.

So despite there could being just one false-positive-not-fixed-after-human-contact every 1 million deleted meetups, in Internet that false-positive is likely to bring a lot of undeserved negative attention.