Most of the documents that I look at for ACS/APS and APIs, says "Obsolete pages" followed by a link to the top of all documentation. So, essentially, something in here no longer works and we are not telling you what and not telling you what to do instead.
It might be better to have a note saying that some of the information on the page might be out of date, because that implies that it is still worth reading that document. Essentially, instead of "ignore this page": "read this page with caution".
Hey Kendall - This really comes from the migration from our old blog, forum, and wiki sites. When we moved everything into Jive, we had to pick a date to bulk mark content as "obsolete." The majority of the content in the wiki was already marked as obsolete, so you'll see lots of documents (how wiki pages moved over) marked as obsolete. If we have an updated version, we do need to update the links referenced in that popup, but it's something we're doing gradually, as we run across them.
Each space in the community has several content types - blogs were migrated as blogs, forum topics as questions, and wiki pages as documents. With 10+ years of content, we're still cleaning up. Thanks for your feedback on this - we're working on it!