fair enough.
As i am personally not interested in gambling though i wont build it. Anyone who is into it can build it or pay for it.
But if somebody builds it "loud beighnour" style, they will need to deal with the consequences, namely other neighbours will mitigate it one way or another - e.g. ...policy, soft or even hard forks to fight back if the gambling neighbor becomes so noisy that it affects the entire neighborhood (e.g. 50% of all transaction being gambling noise)
If the gambling neighbour doesnt want that, they should go about their gambling in a way that doesnt affect the neighbors who are not into it. ...be a good neighbor - or else deal with the consequences