O is Arir39 doing that again, we will come out one day i hope.

maybe it is a little bit of everything... i think the guy not interested in his own or others penis is not on this site. so what's left is a group of guys with some fascination about it. could be straight wanting to compare themselves to others, to gay, wanting to drool over a nice cock, to everything inbetween, straight-bi-gay whatever. i don't think a fantasy of sucking cock makes a guy gay! if i fantasize about fucking a women, that doesn't make me straight! if i fool around about that on a site like this with a lady, i don't change, i like compliments & fooling around. being anonymous also adds to the freedom of course!

size is an issue because big stands for: power, capacity, ability, ****, strength to name just a few... not only that, big has another unique feature: it's scarse..!

Interest in other men's cocks is not a GAY thing, it's a GUY thing. ALL MEN, gay or straight, are interested in other guy's cocks and like to look at them.

Many otherwise straight men also like to suck cocks. This is far more comonplace than most people realize. There are thousands of straight cocksuckers who are members of this site and undoubetly millions worldwide. Does this mean that they aren't really straight? Well, yes, certainly in some cases. But in most cases they are functionally straight. They could never have a romantic relationship with another man, all they want to do with another man is suck his cock.

As for your question "why is SIZE a big issue?", well don't be naive. The bigger is better philosophy is so pervasive in human society that it has to spill over into dick size.