- save all values everywhere: why not select the one that would last the longest (that people delete least often)? Or maybe two, if you want a cookie but also want to survive over "delete all cookies". But then again, if a user wants to delete cookies then you really shouldn't try to keep it.
- "Data is stored resiliently but can also be voluntarily purged if the user designedly clears cookies and application storage." So you delete data when the user wants to delete data. Which database doesn't have this feature?
- doesn't use Flash, Silverlight, or Java -- which do?
- "healing" is usually used in the context of distributed computing, but here it means that it gets around user wanting to delete stuff from it's browser, but perhaps isn't in-the-know enough to delete everything but just the cookies.
No offence to the author but all this sound malicious. Perhaps this is why evercookie isn't maintained?