iPhone 5S with Chrome. Just switched to Nexus 5X last night. First test run here...and it still gets hung up loading the ads mixed in throughout the threads and bumps the position all around as I try to read and the ads load. It has been this way for me ever since the site redesign, which I understood to be more mobile-friendly. I never really used the old mobile site, just computer or iPad based, so this wasn't a big issue for me. But, I assumed it would be better than it is.