The linked case descibes actions against another kind of usage, but has some lessons to be learned.

In short, widely published use cases leads to counter-meassures.
In that case we are talking about high profile blogs and facebook groups publishing detailed step by step instructions, triggering an avalanche of use and abuse.

The interesting thing is that the card issuer added points calculation exception to a specific merchant. Ie not a crude transaction type filter but a specific rule for curve transactions.