Hot Week: 11/9 – 11/15

Yes, I was the one that (mis)informed him as that was my initial reaction. We realized that was false and concluded the same thing (overflow issues even though no combination of the exp, 1.2bil and the sum from i=0 to i=30 of 2^i yields that negative number)

Actually it fits.
The amount of exp it was trying to give was about 2.58b, which turns to -1.71b if you put it in a signed 32bit int.
But yes, the 1.2b definitely sounds like a hard cap.
Nice to know that whoever Sabina asked about this, didn't bother to check (either by running the game or by looking at the code) before they told her to assure the pesky users that it works up to level 250.