I don’t have examples easily to hand, but my impression (sadly) was that it was too often misused, for when someone disagreed with an argument, to mark it as locally invalid rather than simply disagreeing.
Perhaps if people learn to use “weak argument” instead in those situations, I might add it back in later, or perhaps I can find a secret third react which better gets them what they are looking for (e.g. “I don’t think that this follows” or “I reject this step of the argument”) that they would correctly use even if “locally invalid” is added back in.
I don’t have examples easily to hand, but my impression (sadly) was that it was too often misused, for when someone disagreed with an argument, to mark it as locally invalid rather than simply disagreeing.
Perhaps if people learn to use “weak argument” instead in those situations, I might add it back in later, or perhaps I can find a secret third react which better gets them what they are looking for (e.g. “I don’t think that this follows” or “I reject this step of the argument”) that they would correctly use even if “locally invalid” is added back in.