No reason other than wanting to nail down the root functionality of the forums themselves first. There are lots of little WP do-dads that we can take advantage of, and pingbacks will likely be on the list for 2.1.
Great, thanks for letting me know. So there is no speed arguments, e.g. a site with 1’000’000 posts could get bogged down if it has thousands of incoming links?
p.s. sorry for repeatedly posting in ‘Installation’, I just don’t take notice of it very easily.
It wouldn’t be anymore bogged down than a site with 1 million blog posts, which is to say that once you have that kind of traffic and data store, you are probably backed by the proper hardware to handle it.
@johnjamesjacoby I read https://bbpress.org/forums/topic/bbpress-2-0-updates/ and am just wondering if I create a forum topic with an external URL that it will tell that blog that I pinged them, now?