Deconstructing WOTC's Disclaimer. Is it bad for the hobby?

I'm looking to have an open discussion concerning the product disclaimer that Wizards of the Coast has labeled all legacy TSR products with on DriveThruRPG. Do disclaimers such as this harm the hobby in general, or more specific does it harm WOTC sales?

[@ScottBaker_]

I'm lucky that I'm not giving Hasbro any money, so no issue of whether to buy the book or not.

[@mykediemart]

I don't want to give WoTC money, I let my core AD&D books go, and replacing them in a collectors market isn't viable. So if I did want to run AD&D I'd need 4 or 5 copies of the PHB. So I would buy reprints, the disclaimers are not printed in the books. Currently, Castles and Crusades is a fine replacement as is OSE Advanced.