What does the expression below mean?

The given sentence apparently means something like: "I hate almost all rich people, but I'd be charming about it, and they'd never know how much I hate them."

anonymous

I hate almost all rich people, but I think I’d be darling at it.

Thanks.

I would interpret it to mean that the speaker thinks that he or she would have no difficulty adopting the lifestyle of the rich if given the opportunity.