I'm listening but I don't think you are. It's perfectly logical to not make bitcoin a safe space for spammers. Node must have a say in what goes into blocks, giving up and ceeding all control to miners, which is what removing the ability of nodes to filter will do, will be the end of bitcoin in the long run. The ONLY thing that makes bitcoin unique (other than first mover advantage, network effects etc) is that its nodes can be run by ordinary users. The nodes signal to the miners what they want them to do. The fact that miners can currently ignore them is the problem that needs to be fixed (by decentralising mining), the solution is not to just give up all control to the miners. If that happens we are effectively ethereum.