The term PUA in itself is a whole loaded term.
While it may be true that there are PUA's that have no ethics with women, there are other PUA's out there that genuinely enjoys being with women and love to give women pleasure.
A friend of mine dates a lot of women, but he doesn't act like a "social robot" in situations with women (such as instead of seeing 2 girls at a table you see a 2-set, always trying to find the buying temperature, etc).
I've seen PUA's with high ethics, and everything is never really black and white.
Just remember, the vast majority of people take more pleasure in seeing others fail than to succeed. So there always will be haters out there. Just remember, who's reality do you live in: yours or other people's opinions?
IMO, the whole HB number system is not the greatest system to follow.
Everyone's taste is different, so don't go by what society thinks is an HB 10. Go by what YOU think is an HB 10.
And honestly, the only numbers you should ever use is a 0 and a 1.
0 if the girl is incompatible with you.
1 if the girl is compatible with you.
That's all that matters.