PUAs don't, on the contrary they accept woman exactly how they are

The problem here is likely that the PUA presumptions concerning what women are like are offensive to some.

PUA stance - "I accept women how they are! Women are attracted to confident, dominant males. You've got to show that you are assertive- even if it means being an asshole and playing on people's insecurities sometimes."...etc

Analogy to racism - "I accept blacks how they are! I don't demand them to do intellectual tasks. I keep plenty of watermelon and fried chicken lying around the house, I do everything I can to make them feel welcome" ... etc

You see the issue here? The thing that offends here is not the fact that PUA's want to adjust behavior to attract women. The thing that offends is that the PUA's conception of what women are like is perceived by some as demeaning. Imagine how you would feel if someone made inaccurate assumptions about you via generalizations from some group you belong to?

I also want to say that even if PUA techniques are instrumentally successful at attracting women (I don't know if this is the case), it isn't necessarily because that the PUA worldview is epistemically correct. I'm sure anyone who sets out with the explicit goal of attracting women will be more successful at the task than they were prior to setting up that goal.

If you feel like the PUA conception of women is accurate, that's a different discussion...and perhaps one that we should have given the concerns about misogyny on LW. I think PUA memes are especially dangerous because they are half-truths, which makes them compelling and "sticky" - but that is an opinion, and I admit only passing familiarity with PUA memes which I've picked up from visiting their forums

If anyone does feel that PUA memes about women are more or less accurate, don't be afraid to speak up. I encourage people to make this a safe environment where people can air those thoughts without being ridiculed. We can hash the thoughts out, and maybe some of us will update. We can make a different thread for that purpose, if necessary.

Of course, it's also a possibility that not all PUA memes are offensive...but I've dropped by those forums, and I know some of them are. It might be helpful if someone made a list of common terms and pointed out the problems...although I really wouldn't want to start an inter-forum conflict over something silly like this. Though they do come under a lot of criticism, so they probably wouldn't notice.

In effect PU is understanding how women work and adjusting your behavior to become attractive to them.

The above aside...I dunno. This statement feels like manipulation via false signalling, and I find that distasteful. I think that's mostly in the phrasing though, since there is nothing intrinsically wrong in wanting to be attractive.