Explanation --- While Same Name Siblings (SNS) have been introduced into the spec to allow compatibility with data structures that are designed for and expressed through XML and therefore are extremely valuable to JCR, SNS come with a substantial overhead and complexity for the repository.
Any path into the content repository that contains an SNS in one of its path segments becomes much less stable, if an SNS is removed or reordered, it has an impact on the paths of all the other SNS and their children. For import of XML or interaction with existing XML SNS maybe necessary and useful but I have never used SNS, and never will in my "green field" data models. Example: --- Use /content/myblog/posts/what_i_learned_today /content/myblog/posts/iphone_shipping instead of /content/blog[1]/post[1] /content/blog[1]/post[2]
