I hope this doesn't come across as discriminatory towards you or prejudiced towards @N_Architect as I do consider him a dear friend, yet am completely neutral. However I would suggest re-reading his first response to your statement. I believe bullying is the wrong term used by yourself. It is not threatening to ask that one's responses are backed with evidence or unequivocal proof. Spotting soap residue on a used razor (once is used) doesn't provide evidence to defer the original statement of used once.
With respect to you both if you feel that certain responses are uncalled for, I'm happy to delete personal posts on your recommendation.