I think we need to define the "indifference" at play here. I believe women are attracted to displays of indifference towards COMMITMENT, rather than SEXUAL indifference. Playing "hard to get"--pushing her away, etc.-- is a good button pusher, IMO, but when it's all said and done, it's just a game, and she knows it. We aren't chicks, trying to resist advances. When we see an attractive woman, we want to have sex with her--basic biology.
Now, being indifferent EMOTIONALLY is really the way to get her to chase. Refusing to commit right away, continuing to date multiple women, etc.--while STILL showing interest in her is the way to get her interest level to skyrocket. BUT, you have to establish a sexual relationship with her before this will work--she needs to allow herself to expose some vulnerability. So, I think that INITIALLY, you HAVE to pursue, and be persistent, alpha, etc. You should be IMPLICITLY communicating that you aren't the type to settle down right away, and the way to do that is to HIT ON HER, without fear of rejection. A lot of "community guys" don't do that, and that's why they end up with flaky number closes.
There is, of course, a fine line--if you come off as a player, you will face A LOT of resistance. I don't think that this is a bad thing, though. I tend to escalate very fast, and state my intentions in a way that FORCES her to put up initial resistance- but I do it all in a funny way, and as long as she's having fun and still showing some interest, I know it's on. Women want to be chased and play the part of a coquette.
Where the "matrix" screws guys up is by setting the precedent that WOMAN are the ones that go out and "pick" guys to sleep with out of a pool of eager males, and, if you're a guy, that hitting on women or showing sexual interest is the same thing as sexual harassment. This line of thinking even informs the pickup community, necessitating things like opinion openers, etc.
Of course, woman WANT an aggressive man, which is why kino is so important. But, in order to prevent undesirable men that don't "get it" from overstepping their bounds, conventional wisdom says that hitting on women or trying to pick up, etc. is "creepy."
So, for those that live in fear of society's judgment, the alternative is to go out and WAIT for women to show interest in them. Of course, high quality women don't DO this, because they don't have to. If you wait for women to initiate the seduction process, you will attract low quality women.
I'd imagine if we took a survey of the guys complaining about low quality women on here, we'd find that in most cases, the WOMEN showed interest first. This is how most men behave; they wait for women to "choose" them. THAT is the "matrix" at work; not the stuff about being "nice"--it is common knowledge for even the biggest AFC that women tend to go for "jerks."
A man that goes out and ACTIVELY pursues women, overcomes resistance, and gets the girl will simply get a more desirable woman than a guy that "casts his line," so to speak, and sees what's biting. Sure, it's still a numbers game, and there are still plenty of high quality women out there, but there's something to be said for a guy that pursues despite obstacles, instead of taking the easy way out.