Its security who do the checking and weighing not the check in. I've been through Stansted a few times to different destinations and each time the security have been rigorous. They check what airline you fly with, then check that airline's weight restriction - make you put everything on a scales and send you away if its over the limit. They have little spaces set up where you can weigh in yourself and dump stuff if you're over the limit.
I wonder why they do the airlines work for them?
I wonder why they do the airlines work for them?