In the end, Yang Jingshen had kept pestering the soul guardian by complaining and kicking up a fuss about how he didn't even know about the dangers from which he should protect himself, and what if he died without even having the chance to put up a fight, etc. &, etc.
Finally, the harried 6666 was forced to give some general pieces of advice for him to protect himself. For example, when he uses the items he received from the panel, Yang Jingshen should be as discreet as possible. Especially when he was using them on people or things other than himself.
Just because normal humans can't detect anything, that doesn't mean that he should go around openly flaunting his advantages here and there.
According to 6666's generalized explanation, there are different types of humans, who can be loosely classified according to their sensitivity and response to paranormal incidents.