[blattimwind]

No, not really. The phrase itself has no legal significance any more, anyway, but even if it did, this would basically work like an ACL:

    Allow MIT terms
    Deny *  # all rights reserved (implied)

Am I using it under MIT terms? Allowed. Otherwise not.

[JdeBP]

That is not in fact true on either point. Some legal significance remained for a while, and it is not nor was like an ACL.

* http://jdebp.info./FGA/law-copyright-all-rights-reserved.htm...