All depends on personal preference as well.
The coins that are added are always asked to the community here at Bitcointalk or at our Forum.
Overall, the inclusion of Ripple means that you're allowing it to be used more... to propagate across the crypto ecosystem for a longer time. Even if you are not a fan of Ripple, that is what is happening. It's like if you allowed Bitconnect as an available coin to be used at Stake.
I am not a fan of Ripple or its centralized system. A platform that allows the use of it is indirectly (or directly, if you want to see it that way) increasing the adoption of the coin.
This means more usage of a coin that will end up in the palms of corruption.
We already know fiat is garbage. Why don't we know that Ripple is?
I see your point, that also makes the coin more active to everyone if they do decide to use and express their good thinkings to everyone else and so creates a chain where more people will use it and maybe it will grow in price
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