I love the process, grind my own beans and pull my own shots. It's a good way to start the day.
You'll probably find the Diet Coke is far worse for you than the coffee.
Good luck. I did on Drs orders about 6 years ago while doing a FODMAP. I recall it was 1 month cold turkey on almost everything other than rice and chicken and it was miserable. I think the sugar withdrawal was worse than caffeine (I was a 2 or 3 sugars in my coffee type person) but also...
Probably to stop the counterfeit goods AI bots finding them. Products like Red Points are good at trawling the web to find the fakes but they're not quite there yet to be reliable.