"Smacks of" not "is". I, as a customer of yours (Etched everything) simply want the ability to exclued things from search results. This is an issue I have with Linden Labs, not the vendors. Nor do I have an issue with user-licensing.
Please give users of Marketplace the ability to filter out user-licensed items just like no-transfer, no-copy and no-modify items. It currently smacks of bait & switch IMO as it is essentially no-transfer.