Quick response: Thank you ingrate, for saying exactly the same thing I already said, but as a criticism. As I said, post-leftism doesn't have any substance, it's just a bad critique slapped onto worse ideals.
Metalist, it's not a false reading, it's just a reading you don't agree with. None of those quotes you gave addressed the inherently capitalistic selfish nature of egoism. Sure, you can tell everyone that they don't own property for a while, but when your entire system is based on them doing what they want, sooner or later the ownership of property is going to be enforced again. That's how it got started in the first place. Stirner can give all sorts of opinions about that stuff, but his philosophy is bad, and so his opinions mean nothing. Oh, yeah, and his saying, "But... guys... we'll all be happier if we don't compete" means nothing, because as I said, why take that seriously when his philosophy doesn't. I'm not the one being close-minded here, in the rest of the thinking world Stirner has been relegated to the closet where all the other mediocre philosophers belong, post-leftists are just clinging desperately to his philosophy because it allows them to believe that their selfish ideas of anarchism are legitimate.
Dot, your responses are usually the most thoughtful, so I'll give you a little more response in return. I have never gotten more than one upvote, no matter how uncontroversial or obvious my answer is, the voting system on this website is entirely based on reputation and groupthink (which you wouldn't expect, given this site's so obviously infallible individualistic tendencies, but surprise surprise), and I really don't give a damn about it.
Finally, I realize that egoism and post-leftism are not synonymous, but if I left egoism out, there would literally be nothing to critique. Egoism, the rejection of ideology, and the rejection of identity are the only real ideological components to post-leftism, the rest is just criticism of the left, which doesn't have any real substance to be criticized in itself.
For example, post-leftists say "leftists tend to organize, and we don't like that kind of organization". Ok, that's fine, lots of leftists don't either, but organization is not a core theoretical tenant of leftist thought, it's superficial politics. There is no real substance here. Essentially, without any of those ideological components, egoism, etc, post-leftists would just be non-organizational leftists.
Finally, as for your comment about your own values being subsumed and coopted, I can understand that, I have that same issue sometimes. For example, a lot of leftists, especially the non-anarchist Communists, focus so heavily on Marxist materialism that they have absolutely no tolerance for any other kind of social theory.
However, the left is an EXTREMELY broad group, with a myriad of groups that don't always agree with each other (another reason why the post-left criticism falls flat). I wouldn't say that the solution is just to go "screw it, you're all dumb, and I'm gonna go sit in a corner by myself somewhere and live my own lifestyle", I think the solution is to find other people who have the same ideas, which you will always be able to do. And of course, it's important to discuss your ideas with people who don't agree as well, otherwise your ideas aren't going to go anywhere. We are all products of our own histories, but that doesn't mean that we all can't agree and disagree with each other and still belong to the same overall group (i.e., anarchism, communism, whatever).
And besides, I would hardly consider a school that is based on the rejection of pretty much all other schools of anarchist thought (and not really much of anything else) to be the pinnacle of tolerance.