Advice on how to deal with flakes has changed over the years Iv known about pua, when I first started the advice was :

At the first sign of disrespect to you OR passing up an opportunity to spend time
with you, you dump her. when she calls you wanting to go out or something, you tell
her that her behavior was unacceptable and that the only way you are going to
let her hang out with you again is if she {make up whatever shit you want her
to do because she broke the rules} (ie. fucking/sucking..etc - ed Note; Maniac)

Now the advice seems to be to completely ignore it, and the above is insecure and beta. Now I can see the value of both methods but the first one seems to sit better with me.

If you have not yet slept with the girl I would agree that simply ignore the flake and act like you don't give a flying fuck.

But if you have already slept with a girl a few times and she passes up the chance to spend time with you or flakes at the last min then I do think that you should call them on it.

I recently had a woman who made plans to have sex with me over a week before flake at the last min with some semi-plausable excuse. She started chatting to another guy of pof or something in that time and thus lost a bit of interest in me. I called her on bs in calm way, she acted pissed off so I simply dumped her.

What do you think?

Nope. ALWAYS act like you have something better to do. When you start having a go at her for not meeting up with you then all your doing is pressuring her which girls hate. Its also reactivity which lowers attraction anyway.

In both circumstances even if you have slept with her or not then you should always NOT GIVE A FUCK. Why would you? especially if its casual. Yeah she made plans to be with you but these days everyones busy doing this and that.

The ONLY ONLY ONLY ONLY ONLY ONLY ONLY ONLY ONLY time you should get lairy with a girl for flaking is if she is A) Your girlfriend B) an exclusive fuck buddy.

If no exclusivity has been mentioned then you have no right to have a go at her for flaking. < That is how she will see it anyway especially if your allowed to fuck other girls.

The thing is I originally had other plans and things I had to do on that day, she begged me to change my plans etc to be with her on that day then flaked!

You: Don't do that shit, I have other things that need doing.

Her: *Lairy bullshit response*

You: Ok cool, don't worry found something else to do.