However, it is essential to understand that Flight points are useless until matched by Purchase points. For example, if you use your card once to buy a 5,000 mile roundtrip for $400 you will receive 800 Thank You points (400 Purchase points plus 400 Flight points). The other 4,600 Flight points will remain pending until you make sufficient additional purchases to generate 4,600 Purchase points.
I think Bonus points are also included in the matching flight points. I think most people got 10,000-20,000 bonus points for signing up, so at least those first 10-20K flight points will be available without any additional purchases.