I find this topic fascinating not only because of its practical utility, but also because it presents a dissection of complex human social interactions in a way that's uniquely suitable for study and reaching genuine and reliable insight. Nothing even remotely like that, to my knowledge, has ever come out of any other attempt to study human social behavior.

Alas, the dissection analogy can be extended to people's reactions to it. Just like the prevailing religious opinion in ancient times was appalled at the idea of desecrating dead bodies even for the good of science, so the modern respectable opinion, even in venues like LW, is appalled at the idea that these aspects of human life -- which are in our society treated with an extreme level of both idealization and ideologization -- can be analyzed in such an undignified and desecrating but nevertheless correct way.

One problem with self-help literature, very generally speaking, is that identifying one's shortcomings correctly and addressing them effectively requires, first and foremost, an accurate model of the relevant aspects of one's personality and typically also of the relevant social interactions. Humans, however, are notoriously self-delusional and hypocritical about these matters, and speaking the truth openly and explicitly is often taboo -- even though successful individuals recognize it at some level and adjust their actions accordingly, no matter how much (often honest) outrage they would feel if it were stated explicitly.

Therefore, in order to be palatable to public sensibilities, self-help literature must operate under two crippling constraints. First, it must sugar-coat the problem diagnosis and express it in a way that won't sound cruel, hurtful, and offensive to the relevant audience (and people almost invariably take accurate remarks about their flaws badly). Second, it must frame its solutions in a way that doesn't break the prevailing hypocritical rules about discussing the relevant social norms and social dynamics, or otherwise it will end up too far in the politically incorrect territory for mainstream success.

The best concrete illustration is also the biggest elephant in the room when it comes to discussions of self-help. I have in mind, of course, what is probably the most successful and effective body of self-help expertise ever devised, whose very mention however is guaranteed to arouse passions and provoke denunciations.