I think we have two different discussions going on here. While this thread is specifically about power up points, go green points have entered in and comments are going back-and-forth.
It is possible to take a screen shot of the beginning and end of the power up webinarrs
and it is also possible to take a screen shot when you sign up for go green
Given what we know about celebrities IT department, it is recommended that anytime you’re doing some thing which would get you extra Captains Club points, you should document it