You can change it anytime you like, Stunna will check your profile on the next payment term.
Nice, thanks for your answer. Just have to wait for vanitygen.
D:\tools\vanitygen-0.22-win>vanitygen.exe 1madmat
Difficulty: 888446610538
[494.26 Kkey/s][total 356427671814][Prob 33.0%][50% in 6.1d]
Don't you worry about your computer?
What's more you should keep that private key security once it is generated.
It is running on my computer at work, and only 4 of my 8 cores are running 100% thanks to process affinity.
To keep the private key secure is inherent to bitcoin, i don't see any difference with other ways to get a bitcoin address.