A "Board of Bitterness"?
My experience as a JW, together with what I have seen of other religious groups, has left me extremely distrustful of religion in any of its forms.
I do not take kindly to anybody that has caused me harm, and the JW religion has wrought me harm in various ways. It does make me feel better to, at times, vent my spleen on them by using a few unkind expressions with which to describe my feelings. If some like to call that "bitterness", then so be it!
Bill.