Mark A. Hershberger wrote:
I haven't understood the resistance of the WMF to use SMW in more places, but putting it on MW.o would really make MW.o's non-WMF focus clear.
If the Wikimedia Foundation put Semantic MediaWiki on MediaWiki.org, that would mean that the Wikimedia Foundation would be committing itself to supporting it indefinitely. While there is an active Semantic MediaWiki community, this likely isn't an issue. But if, in a year or two, there's nobody else willing to help out and Semantic MediaWiki breaks, it'll be the Wikimedia Foundation's responsibility to fix MediaWiki.org. Plus there's Wikidata to consider. I can understand the hesitation here.
Of course, if the WMF had some objective reason to avoid SMW, now would be a good time to clarify what those objections are.
According to https://wikitech.wikimedia.org/wiki/Special:Version, the Wikimedia Foundation is now using Semantic MediaWiki (at least on a limited basis). Most of the XSS/CSRF-type security issues have been resolved at this point, I think. I think the general concern has been scalability and perhaps relatedly the ability of users to execute poorly optimized queries (maliciously or otherwise). But take this with a grain of salt as I don't follow Semantic MediaWiki very closely. Out of curiosity, what's the largest wiki to use Semantic MediaWiki?
MZMcBride