I can understand the jogging and underbreast sweat issues. I don't have large breasts and I still have to worry whether the fabric of any certain top I wear will show moisture, because even smaller breasted women sweat there. That is why I wear black usually. And I do like a form fitting top when I run, no bra though, heaven forbid. I can run without any support, but a stabilizing top just feels more comfy.
But I get rebelious if I hear people telling other people what is wrong with the way they dress, what is right and proper, what should and shouldn't show. Arrgg!