Following GitHub’s adoption and ”flavouring” of Markdown in 2009, many other major projects such as Reddit, Stack Exchange have followed suit, even WhatsApp now uses it to add formatting to your instant messages. That’s mainstream!
Tiki has long wished for a common wiki markup language, starting with involvement in Wiki Creole and inclusion of PEAR Text_Wiki adaptors since 2010? we started integrating markdown and now, in Tiki 25, offer it as an alternative syntax in all text areas, such as wiki pages, blog posts, comments and so on. In future versions Markdown will become the only active syntax.