I disagree... The issue is LL being the selling agent. This was not an inworld transaction, I did not pay the scammers own vendor, I purhased from Marketplace. Attempts by Linden Lab to explain this as "a resident to resident transaction" in which Linden Lab does not get involved is invalid because the financial transaction is not between residents but between the buyer and a Linden Lab escrow account "Commerce Linden".
Peter Gray of Linden Lab even goes so far as to acknowledge that it acts as a sales agent in his letter to content creators, dated 24th October, around concerns of the recent change to the Terms of Service. The relevant paragraph:-
"To that end, we are currently reviewing what changes could be made that would resolve the concerns of Second Life content creators, specifically protecting content creators' intellectual property ownership while permitting Linden Lab to, among other things, act as an agent of content creators (such as yourselves), licensed to sell and re-sell such content".
In other words, Linden Lab IS the selling agent of this fraudulent content and yet while making money via commissions from this act, refuses to remedy the error!