Depends on the crime.
Yeah agreed... "serious" is a bit vague and prone to interpretation.
Gun or blunt object homicide. Destruction of property and life via explosives or fire. Rape pre or post mortem. Psychological torture
I'd likely not be the one to snitch, but I also would likely distance myself more.
Getting involved for or against the one doing this stuff's going to carry the heft of a lot of weight.What crime would cause you to snitch? If any
It'd have to be something being done to me or those I care about, and even then it'd depend on the level of risk in the decisions being made.
"Snitches get stitches", and if you're why they were put away they will likely remember you when they get out.