Too many mobile sites do this now; there's a reason I keep declining to use the app... BECAUSE I DON'T WANT TO.

The reason is irrelevant, and they don't ask for it anyways. They just keep badgering and badgering and badgering to try to figure out WHO YOU ARE and tag your phone info/MEID across the internet... Do you really think they can't connect that info?

LinkedIn is the worst example because they represent professionals, and doing this is about as unprofessional as you can get.