It’s such a wasteland. I really think FB is fudging those Facebook user metrics. I might login once or twice a year and realize even marketplace is junk these days.
Marketplace is trash. It is severely broken, the search doesn't work, the filters don't work. It throws in shit you aren't looking for, and constantly misses things that are there. Yet they destroyed Craigslist. Unfortunately its where everybody posts everything and you will sell shit much quicker on there.
Craigslist had the same problem. Once you have a two sided market it is almost impossible to kill your business no matter how hard you screw it up. Unusually Facebook was able to muscle them out, but Craigslist was characterized by years of stagnation where the only thing that happened was they kicked out the prostitutes.