It would be much better for these idiots to just spend say lousy ten bucks on this game and experience it first hand instead of babbling nonsense about it.
I updated
my post but I would have appreciated you point me where are my mistakes on my formulas, instead of just playing big boy. This would have been more constructive. If such mistake is pointed at, I would of course update the post accordingly.
In any case, it seems Cunningham's law is verified.
Your problem in calculation is, that you assume, you have to play and click all the time. This is correct for the lower levels.
But e.g. for level 5 you have to do only one click every 10 hours. This is really easy to handle. You can also do this on your mobile or tab, if you have no internet at work.
I worded this terribly, I concede. By "10 hours a day", I did not not mean "10 hours constantly checking". For level 2, you may set up an alarm every 30 minutes, so you only "work" 10 minutes (600 seconds, 30 seconds every 30 minutes). For higher levels, this is even less "work".
If my calculation is wrong, though, this is not here, this is in calculating the ROI - which is independant of the amount of "work" (except if you factor in the "work" when calculating the ROI, of course). This is where I needed some proof-checking.
Anyway, thank you for your help, this is always nice to see some actual collaboration.