Thread:Help talk:$smwgNamespacesWithSemanticLinks/Talk Namespace with semantic links/reply

Well, if you look long enough for a meaningful reason you will find one. Reality has it that everything seems possible, so I will remove this sentence.

About your issue. I just tested on my test wiki by adding  after the   call and indeed properties may now be set and they also pop up in my query results. Also the help message at the top tells me that I may now add annotations to the talk pages in main talk. There must be something else in the water at your end since I cannot confirm your findings.