> And even if it is a spam server which will keep your jid, he won't be able > to send > you notifications) without disturbing you. > > What do you think of this?
Well, you're trying to fight pubsub spim, but that's only a very small part of the picture. Once your jid is out in the open, it can be used through any channel over XMPP (normal messages, ...). There are efforts to fight spim in general, so I don't think taclking this very specific case is very useful. The fact remains that it is still better to avoid spim than fight it, and there's no real way to avoid it with a push system. The best you can do AFAICT is to do things like introduce a third-party (e.g. your own trusted server) to manage your subscriptions, and let it relay everything, but that would just be moving the problem. cheers, Remko