if you read the post it explains that you still relay it regardless of what you set for that setting. that's why its deprecated, because its misleading.

We only relay spam if it gets into a block. Making it harder for bullshit to get into a block reduces the amount of bullshit people will create. Ocean & Datum are already increasing miner revenue (because major pool operators are clearly corrupt) while allowing individual miners to filter garbage too. The truth is that all the spam revenue was already flowing to a small few & being kept from small mining participants. Datum does more to decentralize mining than any sort of filter removal possibly could. The arguments for filter removal just make no sense. It truly seems like there is some hidden motivation.