[Standards] Re: Proposed XMPP Extension: Pubsub Extended Subscriptions

URL: https://xmpp.org/extensions/inbox/pubsub-extended- subscription.html

While it works fine and is certainly what I would do in many contexts, I wonder if a negative value is the best we can do for "unlimited". Could we not use a field with no value, or with a descriptive value of "unlimited" (I realize perhaps you want to have this match the data types xep and that's why you restricted to integer)