That I would agree with 100%. It'd be nice to have a panel of all the shortcuts and their present meaning available, with the option to rebind them or remove site-local bindings.
The user could get the option to prevent (by default) changes to bindings, with the option to permit them on a site-by-site (or even page-by-page) basis; or to allow them by default and then deny them on a site-by-site basis.
The user could get the option to prevent (by default) changes to bindings, with the option to permit them on a site-by-site (or even page-by-page) basis; or to allow them by default and then deny them on a site-by-site basis.