I contribute/contributed to the following wikis:

• ArchWiki
• Cosmologia (solo user)
• Game Making Tools Wiki
• MobyGames
• Monoskop
• Select Button Wiki (No userpages)
• Sword of Moonlight Wiki
• The Tilde.town Wiki (No userpages)
• Wikia
• Wikipedia

• This one!

List of other personal wikis I've come across. Unfortunately very software-centric.

• Nick Faro's Homepage (Nikipedia)
• https://www.gkbrk.com/wiki
• Matt's Wiki
• Things and Stuff Wiki
• http://www.strellis.com/index.shtml
• Knowledgebase
• https://drisc.io/wiki
• https://philosopher.life/
• https://wiki.paritybit.ca/wiki/index.php/Main_Page
• https://wiki.hjertnes.blog/

I tend to write my notes in Markdown (may just switch to Org at some point?), so being able to easily convert from that syntax to something I can plonk into a wiki is very useful! You can even grab HTML files and stuff straight from the WWW.

☞ I don't like Markdown enough to actually use it as the markup language for the wiki, though.

MD to Doku

pandoc [inputfile.md] -f markdown -t dokuwiki -o [outputfile]

• WikiMatrix - Wiki feature comparison