Thread:Tupka217/@comment-20551-20171013052322/@comment-1038387-20171013195307

It is for MediaWiki. And DokuWiki. And PHPwiki. Basically every wiki software, PHP-based or otherwise. Wikipedia has it as the standard.

Aside from wikitext, pretty much all the additional additional coding languages for wikis, like CSS, LUA, JS, Python, use the straight one. It is very much acceptable.

And even if, by some new official rule, it weren't acceptable anymore, changing it all is so impractical it's pretty much impossible. This is the standard. If you're writing a research paper, go curly. If you're dealing with wikitext, nope.