Most of its functionality is meant to work on other websites. There is probably little reason to install it for amazon.com only.
Note: I’m the author of this article.
Note: I’m the author of this article.
Or else what is the !#?!% technology hurdle preventing users from making their own lists?
I believe more than one user would actually manage access lists for extensions but you have asked a really loaded question given that browser users are not being given the choice here.