I think we all go through this issue at some point. I'm hesitant to put up many pictures for that reason. But like someone before said Albums don't have ratings. I think only Galleries do. Albums still leave an option for comments just not ratings.
First lemme say, I hope to hell I look half as good as you do at 69, secondly, you have to remember everyone is different. If everyone liked the same things in life we'd all be a very very boring bunch. That said, I agree with you about the low ratings. If I see something I don't like, I just don't comment or rate it. It's not their fault I don't like what I see and I don't expect them to change anything just for me, that would be silly and bitchy. What they have is what they are given. It's not my place to judge that. If I like it, great! If I don't, well there are plenty of people who will like what I don't.
Don't sweat the small stuff, you're very classy and you deserve better than that. Don't waste your time with worrying so much about what others think of you. It's what you think of yourself that really matters at this point. The more you lift yourself up, the more people will take notice for the amazing qualities you possess.
Saying all that, don't leave LPSG because someone gave you a 1. If you get enjoyment out of this site with out ratings then continue to enjoy it for yourself and not for others.