@Gargron Actually, I think the premisse of the argument against it is not correct. Sure, quote posts have been misused for bad behaviour. But that does not neccesarily mean that quote posts are inherently bad.
When I look at my current twitter timeline, most quote tweets I see are not used to attack persons. Mostly, they are used to give something context, to give some extra information, or to explain why it would be interesting. There are some personal attacks, but not much ...