I guess I will never understand the need to announce my sexuality to others. Why is it for Heteros - it is what we do and for Homosexuals - it is what they are?
Hi, I'm hetero..... 
Most people like their privacy and don't want everyone to know every little detail and quirk about them. A lot of people are self-conscious about their personal quirks, in fact.
Homosexuals are the only group that want you to know their business and not judge it in any way.
They want their pride and their victim status at the same time.
Regular people celebrate personal victories and accomplishments. Homosexuals celebrate their diseases and the poor choices that often leads to an untimely death.
I don't think it is actually anything that can be understood. That is why they push so hard for early indoctrination.