What is a question about this article? If the question is unanswerable, say "unanswerable".

Originally, international law was unaccepting of treaty reservations, rejecting them unless all parties to the treaty accepted the same reservations. However, in the interest of encouraging the largest number of states to join treaties, a more permissive rule regarding reservations has emerged. While some treaties still expressly forbid any reservations, they are now generally permitted to the extent that they are not inconsistent with the goals and purposes of the treaty.

Reservations are generally permitted so long as they are not what?
inconsistent with the goals and purposes of the treaty