Looks to me like somebody is trolling for suckers, and caught a bunch.
But just for the record, carp is absolutely good table fare, although it does not appeal to me personally (and I eat just about anything). When I would catch a nice carp from cold water in one town where I lived, I would bring it to the folks that ran the gas station in town. I could have given them a salmon and they would not have been NEARLY as happy. I published two carp recipes with a "cookbook" I wrote back around 1994 and could still find them.............
But this thread is really about suckers, not carp I think.
Doug