Thanks for the tip about "showdead". I totally agree that there's a big danger, if one follows the strategy I described, of personal bias making one confuse "intelligent" with "what I want to be true" or with "what I enjoy because it is contrarian". However, I am aware of this danger and work to mitigate it in various ways. Also, I should mention that I don't think that grayed-out comments are 0.5 likely to be highly intelligent - I'd say it's more like about 0.1 or 0.2. Overall, I think that the benefit of prioritizing grayed-out comments, to me, has been worth it so far.