I don't know. I never give compliments based on size. I really only mention size if it presents a challenge, is an unusually good fit, or in the context of my fascination with measuring objects. I have given reassurances if I could do so honestly, and they seemed like they might have been sought. Is it possible that male genital based insecurity is a cyclical pattern wherein some men demonstrate sensitivity, some women treat them delicately and then those men need to be treated ever more gently? Maybe.
I would say no IMO. Well maybe yes because it might be like that for a small amount ( but the impression that I have gotten from other men that it isn't like that. They don't become more sensitive because they are treated delicately. They become more sensitive because they are mocked, made fun of, left/broken up with over it, contradictions, lack of praise, see that trait openly disparaged by others, how it is rarely if never talked about in a positive light, etc.
So the anxiety increases because in their perspective it is a very negatively viewed trait. Which is true. That sentiment of it being a bad trait does rear its head in this thread. Did I start the topic about would you have make fun of a man over it? No. Was it mentioned fairly often? Yes. was the opposite ever mentioned? No not really. Perhaps the closest to positive was Sweetlucky's post. The stigma around it certainly affects how others talk about it and what their immediate thoughts are about it. I've only had a very very small handful of women who responded who were keenly aware of this kind of stuff. Ofc men who are affected are but can oft times be brushed off as merely being insecure and over reading into the situation.
I find it similar to what women may experience by just being a woman. Like I'm not comparing the magnitudes of the two but how if you look at how we speak, a lot of what is commonly said can straight up be disparaging but it has become so widespread many of us might not think about it. You might find yourself frustrated with men because of their obliviousness to the issue or how they simply just brush you off saying how' your are reading too much into it 'or making too big a deal out of it' or 'you are making it up.' I think both genders deal with their own set of issues, some issues that not people of said gender have to deal with but are simply unique to that gender.
So it comes down to how one views something and then treats it. Does their views match with how they treat it?