There's a proverb I failed to Google, which runs something like, "Once someone is known to be a liar, you might as well listen to the whistling of the wind." You wouldn't want others to expect you to lie, if you have something important to say to them; and this issue cannot be wholly decoupled from the issue of whether you actually tell the truth. If you'll lie when the fate of the world is at stake, and others can guess that fact about you, then, at the moment when the fate of the world is at stake, that's the moment when your words become the whistling of the wind.

-from Eliezer's quoted article Here

I don't know if you read the entire body of my comment bringing up Kant, but it rests on asking if there was a similarity in Eliezer's argument and Kants with a question mark at the end.

Both Eliezer and Kant seem to think that this abstract thing called "trust" suffers when individuals choose to lie for their own purposes. Both of them suggest that individuals who believe this would benefit from adopting a maxim that they should not lie.

Eliezer states in the comments that you can lie to people who aren't part of your community of rational or potentially rational individuals.

Kant says that you can't lie to people, even if they aren't part of your club.

You don't need the CI to reach either of these conclusions; the comment points out that you could do this on Utilitarian grounds. Utilitarian reasoning might even support Kants "don't like to anyone ever" over Eliezer's conceptions.

As for arguing Kant leading to a dead end, there is plenty of contemporary philosophy that still uses a lot of Kant and even NPOV Wikipedia has a section detailing Kant in contemporary philosophy.

Also, I think most people on here agree that Kant was wrong. In more ways than one. Thus debating Kant is pretty much a dead end.

I am always of the mind that saying that someone's assumptions are wrong doesn't lead to their argument having no value ever for any future discussion. In this particular case we got to use a Kantian thought experiment to talk about what looks like a variation on Kantian logic. I'm sorry I used the K word.

The idea of everyone on LW believing that Kant was almost totally wrong and that we should completely discard him is a little unsettling to me. There is a much larger community out there that accepts elements of Kant's arguments and methods and still applies them; I would again push a Robin Hanson line by suggesting that most rationalists are elsewhere and we should work harder to find them.