To some people, such as the grouchy hermit types or the promiscuous hookup types, wanting a loving relationship with another human being is a no-no... so much so that they consider it a sign of weakness and desperation in others, hence an opportunity to get sadistic and torment them. "Oh, that guy's lonely and desperate... maybe if I drive him to suicide, I'll win a prize." That's the mentality.
It's all relative, however... when enough people finally get tired of not being able to meet someone, and start putting their heads together, picking on lonely people would be like trying to tell car owners to get a horse. For a while, it looks like a crusade, but eventually becomes asinine.