No one has told me im TOO nice, i cant imagine anyone having any complaints to someone being nice.
really depends on the situation ... if i can tell they are being sarcastic then i try and understand what they mean by it and if need be will try to change that manner since i will not be stepped on ... but for the most part i take it as a compliment
What they are really saying is that you are a doormat, but no because no one ever says that to me
Depends on the context really. In a reply to actually doing somtehing nice I take it as a compliment
No, why should it. It's up to me how nice I am (or not).