I wish CL had a way to flag repeat posters (the ones that keep re-listing the same 10 bikes every week or couple of days) that would suspend postings from their email accounts for say 15-30 days. I know they could just open up a new email account, but it would be some push back (beyond normal flagging) that might get them to ease off a bit.
This year there are 3-4 flippers who have been doing that, so something like 30-50% of the ads at any one time are their re-listed crap. It feels like wading through a cesspool looking for a silver dollar. There are just too many of them to flag -- and all that does it get them to re-list sooner and have them up top again.