[Nwallins]

> and then the second response comes in. At this point, the user is at an "oh shit" moment, finally comprehending the implications of Google's labeling

I am having trouble understanding what the problem is, here. I also suspect this may be a Gmail problem rather than a tagging problem.

[AndrewDucker]

It's tagging a conversation rather than tagging an email.

I frequently put different emails from the same conversation in different folders, because they contain different types of information that I need to do different things with.

GMail will not let you do that.