I was shocked, but not surprised. The most interesting parts of the American Mathematical Monthly and SIAM Review are their problem sections.
Nobody reads the articles, but many readers go straight to the problem section.
Almost as interesting as the problems are the solutions. One of my favorite books is Klamkin's collection of problems from SIAM Reviews. Even from the snobbish, prestige-hungry, point of view of the SIAM administration, there is justification for the problem section. Similar things can be said about Monthly problems, for example, Erdos's problem from 1946 that started Euclidean Ramsey theory, and the famous Busseman-Petit conjecture that was first raised as a Monthly problem. But, most importantly, Problem sections turned many young people into mathematicians.