I think when you're talking about the mobile site you're probably referring to when they didn't have a mobile site yet. Over the year they've released an actual mobile website.
I do agree that the full site ads are pretty annoying, and the mobile site has its issues, but it's more usable than what it was before (which was the full site on mobile).
I do agree that the full site ads are pretty annoying, and the mobile site has its issues, but it's more usable than what it was before (which was the full site on mobile).