/jivespace/community/welcome?view=discussions contains 30 threads, the next 30 threads are on this page:
/jivespace/community/welcome?view=discussions#/pages/2 (I did select "copy link location). This is totally wrong, when one clicks on this link the browser fetches:
/jivespace/community/view-threads.jspa?start=30&range=30&numResults=30&containerType=14&containerID=4275&filter=all - this page contains only a fragment (the threads) of the whole HTML page.
So after the 31th post the 1st thread gets moved to page 2 and there it may be no longer reachable for a spider. The spider will remove it form the index sooner or later.
/jivespace/tags/ or /jivespace/community/welcome?view=tags are more examples, copy link location returns
/jivespace/community/welcome?view=tags#/with_tags/jive - once again this is wrong and the browser fetches
/jivespace/community/taggable-content.jspa?start=0&range=25&numResults=25&tags=jive&containerType=14&container=4275&sort=6000&taggableTypes=all - anyhow a search engine does not so the tags used here are likely never indexed.
Anyhow the "Popular Tags" widget itself does provide serach engine friendly links.
I hope that SBS 5.0 does improve things.