(replying to both since they're effectively the same comment) Abuse of such things is definitely a challenge, and there is finesse on choosing the right thresh

(replying to both since they're effectively the same comment) Abuse of such things is definitely a challenge, and there is finesse on choosing the right thresholds. I doubt twitter can fully escape manual moderation and as such one of the goals of a system like this would simply be to reduce the number of situations that require human intervention. Undoubtedly, there will be false positives, but abuse of the abuse system will likely be rarer than abuse as a whole and if a human moderates and finds such meta-abuse it would be grounds for the strictest means of blocking twitter can provide, thereby hopefully incentivizing against it.