I guess you meant to ask, "how do you distinguish ideas that lead to death spirals from ideas that lead to good things?" My answer is that you can't tell by looking only at the idea. Almost any idea can become a subject for a death spiral if you approach it the wrong way (the way Will_Newsome wants you to), or a nice research topic if you approach it right.
(the way Will_Newsome wants you to),
I've recanted; maybe I should say so somewhere. I think my post on the subject was sheer typical mind fallacy. People like Roko and XiXiDu are clearly damaged by the "take things seriously" meme, and what it means in my head is not what it means in the heads of various people who endorse the meme.
I have several questions related to this:
If you visit any Less Wrong page for the first time in a cookies-free browsing mode, you'll see this message for new users:
Here are the worst violators I see on that about page:
And on the sequences page:
This seems obviously false to me.
These may not seem like cultish statements to you, but keep in mind that you are one of the ones who decided to stick around. The typical mind fallacy may be at work. Clearly there is some population that thinks Less Wrong seems cultish, as evidenced by Google's autocomplete, and these look like good candidates for things that makes them think this.
We can fix this stuff easily, since they're both wiki pages, but I thought they were examples worth discussing.
In general, I think we could stand more community effort being put into improving our about page, which you can do now here. It's not that visible to veteran users, but it is very visible to newcomers. Note that it looks as though you'll have to click the little "Force reload from wiki" button on the about page itself for your changes to be published.