Paranoia is fine in copious logical amounts if it’s based in reason, but it’s more harmful than good in the long run.
Eventually you have to take stances on players and can’t use their activity or skill level as an excuse to totally refrain from providing thoughts on them. It’s not always the case they end up being scum either. Perhaps despite getting widely town read they’ve been left alive for any number of reasons like having bad reads in the wrong direction, getting pocketed, providing a distraction for scum, ect