This seller is a member here. I've PM'd with her about Chanel bags and she is always very nice and helpful. I know she is a busy lady who is not on the forums as often as a lot of us, so perhaps she doesn't check her ebay mail for questions on a daily basis. As an ebay seller myself, sometimes buyers ask questions that are right in the auction, and it irritates me that I have to respond because they were too lazy to read the description, etc.
And just like on ebay, the redundancy in the forums often irritates me no end; I could never be a mod and act civil to people who clearly have no skills (don't bother to use the search function, can't spell or use proper punctuation, can't articulate a thought in a clear manner, etc.).
I'm just playing devils advocate but can state pretty confidently that I don't think it's a scam.