A discovery appropriate to some communities of various hucksters, shysters, con artists, manipulators and other interested parties to sound cozy and cuddly and altruistic.Click source for explanation of euphemisms and more.Much more !

How about....
"THRILL SEAKERS" or perhaps that would come under manipulative bit*hes.
These are people who should tell other people the truth but hold back because they are getting a THRILL out of the whole situation. They know that the end result will cause someone pain, but gee, they're having so much fun.

G,day chestnut Ah yes "thrillseekers ..Games" feeding titbits for their salacious delight, an' in" joke the other is not tuned in for. "Moral cowardice' is what your talking about my dear chestnut.Lincoln in one of his speeches (atheists) said something about our inner angels and einbars, lecturers about" working at a little harder to be good' as the bad in humans is 'contagious".Maybe stronger from when we were babies demanding attention,so stronger impulse to overcome.I,m a babe in the woods still working on this stuff ,many branches on the silk road.