This was discussed briefly before [1], but would like to bring up the firehose use case once again within the context of PSHB.
Use case: it would be great if the spec allowed subscribing to _all_ new content seen by the hub. For example, blogger supports PSHB, but short of crawling for all of the blogger feeds, there is no way to get the full content stream. There are a few things that would have to be resolved: - Spam. Just as with the ping servers, how do we protect the hub from becoming a spam distributor? Thoughts? - Would have to define the subscription mechanics / protocol. Even if this is an optional extension to the protocol that select hubs could implement. (Though, of course, I'd love to see it on the already deployed hubs). What else? [1] http://groups.google.com/group/pubsubhubbub/browse_thread/thread/7f285c23f3e361ac/690e358173c83252 -------- Ilya Grigorik postrank.com
