What I've noticed personally is a lot of sites using absolutely horrible, broken mobile frameworks that seem to be designed with the singular goal of frustratin

What I've noticed personally is a lot of sites using absolutely horrible, broken mobile frameworks that seem to be designed with the singular goal of frustrating and annoying the user. I can only imagine the dollar amount sunk into these awful mobile experiences, no doubt implemented by some clueless middle manager scrambling for a "mobile strategy". I literally have seen websites instruct me to "rotate your device" so that I can be shown an ad, only to be rewarded with a completely broken and unresponsive layout afterward.