misteryudi, there was a thread from a while back that I was trying to find so I could post the link for you. It was about someone who decided to leave the CR because he/she felt that he/she was having Emunah problems because of posts in the CR.
I don’t know how common that is, but the fact that it happened once is cause for caution. I would guess that that is the reason for Mod-100’s caution.