I will say, I tried reading through a whole bunch of the reddit forum the last few days related to churning and it is intense. I can see where
@culdeus gets it from with being very precise and detailed about this stuff so I can't fault him.
The manufactured spending threads was one rabbit hole too many for me to go down still learning this game. There are some people out there doing some serious working of the system and even making a decent chunk of change doing it. For example, hitting the Black Friday deals the last few weeks, getting tons of gift cards at a discount or on sale and then cashing those out through various methods.