Sorry if offended, I see your point and you're right here. The only thing I don't understand is "dev team quite rightly will not help when the crack is installed". Welcome to piracy website? That's what you get for advertising here and making paywalls in your game
There is piracy here? yes.
But this particular game thread has the support of the Dev and his team, updates are publish regularly, feedback, in-game issues and bug reports are listened to, help is given and where appropriate fixes issued. There are no demands to subscribe, yes it is advertising and those that can will contribute.
Not supporting modified software, games or otherwise, is a standard practice. If a bug is in the dev's code they can fix it. If an issue occurs in modified code, the dev cannot do this, particularly if it is the result of modifications to the their code.
I suspect you know this yourself, you know your code, you know how it works if it breaks you have an idea where to look, if someone has changed something somewhere else in your code; you have extra, unnecessary work to do to fix their 'fix'.
So that is understandable, what is not understandable is requiring the dev to fix something that someone else's code has broken.