Sure, but if you don't use it you just make that worse. Of course if Craigslist had died where you are then there is no choice. However where I live Craigslist is still active enough that I can afford to ignore anyone who isn't there.
In some regions (mine) Craigslist never took off, and now is a ghost town.
I would estimate it gets less than 1% of the traffic of FB Marketplace, in terms of number of vehicles posted. And nearly all of them are car lots, not individuals.