Evercookie creator said:
What is the point of evercookie? Evercookie is designed to make persistent data just that, persistent. Bystoring the same data in several locations that a client can access, if any of the data is ever lost (for example, by clearing cookies), the data can be recovered and then reset and reused.
Anyone can easily change their IP address and delete their session cookies, something that allows banned members to easily re-register.
It'd be awesome if evercookie gets implemented somehow in xenforo. An add-on would also do nice I suppose. Test it by yourselves. You can even change your browser. It can still detect you
I have just suggested g0rn, the creator of Multiple Account Detection add-on, to use evercookie with his last add-on.