Lol, I think you're missing the point.
Just because you think its not worth a donation in this state, who's to say that someone else thinks it is worth their money? That's their choice, not yours.
And like I said before, we're all working under the assumption that if you've gotten this far, then you should be bright enough to thoroughly test the mod BEFORE making the choice of whether to donate or not. Donating blindly under the assumption it will be supported eternally is plain stupid.
If that's too difficult to understand, then I think perhaps this is not the right place for you.
Also, what defines 'broken'? Last I checked, you can still drive it, set lap times, listen to the interior sounds, marvel at the amazing model, appreciate the skins available... (the list goes on), and to many that might be enough to warrant them donating a little for the mod creators efforts.
You don't think so, that's fine. But don't be trying to make other people's choices for them, let them make it themselves.