Is it correct to use "(mucho) gusto en conocerlo" for a formal greeting?
My question is about the "lo", it sounds like the neutral "lo", a bit like the English pronoun "it". Isn't it the case?
I would rather use "conocerle", that seems more logical to me.
I've found that in Spanish forums, so I want to know if it's 100% a mistake, or if it's used in some areas. If it's a mistake, is it very common?
As a bonus, I suppose that both "en" and "de" could be used, isn't it?