For several reasons, the biggest being security. Seems there have been an increasing number of issues with the client that aren't being addressed satisfactorily by the developers. The biggest issue being Admin notices being sent to non-Admin users. Not to mention, with them going to an ad based client (the free one), I'm not wild about TapaTalk making money off the site here from people using the free client. Going to mull it over for a few days. With the site having a responsive design, it really shouldn't be that much of an issue if I do pull the plug on it. For those of you that are still using TapaTalk, try hitting the site with your phone browser and see how you like the responsive design.