Board Thread:Support Requests - Getting Technical/@comment-5558012-20160814020010/@comment-24473195-20160814143912

I remember one such post. It was probably either in a technical update or in one of the many threads or blogs discussing portable infoboxes. Someone complained that portable infoboxes didn't like (prevented it from working) , and it was noted that it is this way because they (wikia) use an XML parser to validate the portable infobox syntax. Later on wikia changed their portable infobox code to accept both variations.

P.S. You might want to look through your contributions in the future, that's how I found the link above.