There is room for these formats to co-exist. For science, no doubt asciidoc is best.
For the majority of devs, I feel markdown is a better choice to "just write down something I know". It supports basic formatting, tables, images, footnotes, code highlighting - at least for wikis.
But for the normie pleb masses, to just share knowledge in a structured form, even markdown is too complicated, and a visual editor is needed for sure. I am now heading in the direction of using Nostr flavoured MarkDown as the default format and hoping to be able to extract GitLab's WYSWYG editor for visual edits: https://gitlab.com/gitlab-org/gitlab-foss/-/tree/master/spec/frontend/content_editor?ref_type=heads
In the wiki I'll keep compatibility for the asciidoc format, for more scientific articles to be written. It will be configurable per article, and the app will have a global default format.
cc nostr:npub1l5sga6xg72phsz5422ykujprejwud075ggrr3z2hwyrfgr7eylqstegx9z