Love it, I have the same. "GoodIdeas" in my Vim potwiki(0). Most of them I shared in passing, maybe one or two I hold on to actually being special. Have often thought of an anonymous twitter feed as an alternative.
There is no markup in the former, you just get highlighted words whenever there is any (capitalized) camel case word. Hit enter on the word and you get to the new file. Super lightweight, super efficient.
I don't render most of the notes I take, but will write draft in markdown from time to time. The wiki is in a git repo, of course, that I commit to once in a while.
[0] https://www.vim.org/scripts/script.php?script_id=1018.