Vendors are going to do what they think is necessary to maximize their customer base. If they only made products that were compatible with Poser 9+, in terms of file naming, formats, etc., they would be eliminating about 70% or more of their customer base. Those are not realistic expectations for vendors to meet, especially at the prices most content sells for in the Poser market. They have to make what the majority of people are going to buy, and name their files based on what the majority of people are used to. There's nothing wrong with "vanity" folders - it helps keep a specific vendor's products organized in one place, and only a handful of people seem to have a problem with it. How is a vendor supposed to know what other vendors are naming their products? Without vanity folders, it's extremely likely that a new product will overwrite an existing product with the same name, and then you'll really have people complaining.