So I have read a post on this sub about using this "pull-push" technique to get women.
It had a lot of angry comments from people claiming that it s a form of manipulation and should not be used at all.

On that post, OP said that you should not be predictable to women, because being mysterious will make you attractive.
What he did: he spent some time with the girl, take her to movies, dates, parties, making her think that he likes her(pull technique).
Then next week, he decides not to contact or respond to her texts(push technique). Then next week again, he asks her again for a date/dinner. He said that this will confuse the girl and add an attraction, because women hate guys who are boring.