How is that even possible can you not unren the game?
I don't know the technicalities, but basically when you run a Ren'Py game you run an .exe, that loads the Ren'Py scripts.
You can unren the scripts, but the authentication 99.99% is in the .exe, so unless someone is skilled enough to decompile the .exe, and
reading the assembly code find the login procedure and bypass it...
...extracting and decompiling the Ren'Py scripts is useless, because if the login fails it's the .exe itself that automatically quits.
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I guess that there's someone that can do it somewhere out there, but while bypassing a Ren'Py check is something 80% of us can do, tampering with an executable requires high skills.
And after it's done, well... It's not the original executable anymore: who knows if the cracker
only cracked the login routine or also put some
malware in it?
In the Nineties cracked executables were used as baits to spread malware.
Old timers like me will remember how many times we had to format the hard drive after visiting astalavista.box.sk