Naruto Shippuden: Ultimate Ninja Storm 2 [BLES00952]

I think it´s also good for RPCS3, because it makes the emulator more visible and maybe it helps to attract more developers.
Of course the project has rules and Tambre don´t want it to be a mess.

No. Developers don't want to work a developer that uses hacks. That's one of the reasons I'd never want to work on PCSX2, for example. Improper hacks/hacks without explanation are considered the worst and will rather keep better developers away.

And yes, there are rules. The rules are there for a reason. And the rules should be followed.

But why not just put Naruto Shippuden: Ultimate Ninja Heroes 2 [BLES00952] *
* = Works with hacks.
And just remove the ´*´ when it start to work with the master branch?

No.