Am 04.02.2016 um 08:03 schrieb Markus Krötzsch:
I do not agree with this argument. One could use a simplified version that is compatible with Wikipedia *and* with the rest of the world. We do not have MediaWiki markup in our text data, in spite of it being widely used on Wikipedia for many years -- instead, we now introduce a subset of it (the part you could put into <math>). If we have settled for a subset, why not use one that works with more commonly used tools as well? I don't think that MediaWiki LaTeX users would find it very hard to go back to the LaTeX they use elsewhere (in their own documents, on StackExchange, etc.).
A question you should ask when making extensions to the Wikidata data model is how much it will cost your data users to keep supporting Wikidata content in full. Such little twists, for a few extra commands, are creating extra work for many people.
I agree that it would be nice to have a "strict TeX mode" for the math extension. I'm not sure whether we would enable that on wikidata. While it would make the life of consumers easier, it would make the life of people importing from wikipedia harder. But perhaps it would be worth it, especially if the use of "extra stuff" is actually rare on wikipedia.
Moritz, how hard would it be to add a "strict mode" that would disallow any non-standard syntax?