On this we agree. If we have 60% confidence that a statement is correct, we would be misleading others if we asserted that it was true in a way that signalled a much higher confidence. Our own beliefs are evidence for others, and we should be careful not to communicate false evidence.

Stripped down to essentials, Eliezer is asking you to assert that God exists with more confidence than it sounds like you have. You are not willing to say it without weasel words because to do so would be to express more certainty than you actually have. Is that right?

I'm afraid I must disagree kurige, for two reasons. The first is that they smack of false modesty, a way of insuring yourself against the social consequences of failure without actually taking care not to fail. The second is that the use of such terms don't really convey any new information, and require the use of the passive voice, which is bad style.

"Evidence indicates an increase in ice cream sales" really isn't good science writing, because the immediate question is "What evidence?". It's much better to say "ice cream sales have increased by 15%" and point to the relevant statistics.

Can you offer any evidence that weasel words are necessary to rational discussion? I can imagine that weasel words are common to scientific discussions, as well as discussions regarding faith. However, I don't see any barriers to people eschewing them.