When I look "ugly", the kind of men who are into me are creepy, older men, random men from cars, etc.
I thinking being ugly attracts people who either a) see you as desperate and therefore thirsty or b) they think you're a virgin and are naiive, innocent, etc. which attracts them to you because they think the stuff they're saying goes over your head. It's gross either way.
When I wear ditch the glasses for my (clear) contacts and wear makeup, the men who are seem more interested in me are more around my own age and don't seem motivated by the above factors.
Either way in appearance, girls aren't into me, so it's lose/lose situation.