I don't think we should react to differences in tone the way that we do. The fact that our community has different norms depending on whether or not you use certain tones is problematic. We should try to minimize the impact that things like tone have. Substantive issues ought to be a priority and they ought to dominate to the point where things like tone barely matter at all.
It's a big shift, for people to become unaffected by tone. Even if it was possible for community members to make it, it would be exclusive to outsiders, who would be affected by the tone of the discussions and would have trouble participating. Better just to use a tone that encourages good discussions.
EDIT: Or to put it another way, it's better to make comments in a tone that causes people to respond more intelligently, then to require them to be inhumanly unresponsive to tone.
I agree but also still think that tone is very overemphasized. We should encourage less reaction to tone instead of taking it as inevitable and a reasonable complaint in response to a comment, which is what I think that we currently do.
Today we're announcing a partnership with Castify to bring you Less Wrong content in audio form. Castify gets blog content read by professional readers and delivers it to their subscribers as a podcast so that you can listen to Less Wrong on the go. The founders of Castify are big fans of Less Wrong so they're rolling out their beta with some of our content.
To see how many people will use this, we're having the entire Mysterious Answers to Mysterious Questions core sequence read and recorded. We thought listening to it would be a great way for new readers to get caught up and for others to check out the quality of Castify's work. We will be adding more Less Wrong content based on community feedback, so let us know which content you'd like to see more of in the comments.