"Any sufficiently complicated note-taking/productivity/GTD system contains an ad-hoc, informally-specified, bug-ridden, slow implementation of half of Org-Mode."
No, it's a note-taking &c. system that offers the capability of doing lots of other things, but nothing compels you to make use of any features you don't need, and in the end the files are plain text files that are perfectly readable in any arbitrary text-editor.
In my Emacs setup org-mode has at least two reproducible bugs(that I know of) and one feature that's obviously implemented in a more complicated way than necessary.
That said it is a fantastic package with some great ideas.
When I enter a new line within source blocks(but often also outside) it starts to wiggle horizontally. It only stops after I revert-buffer or add another line.
Calling comment-line in an elisp source block causes a syntax error because it'll also split up the line below.
And the time tracking feature doesn't work across Emacs restarts, because for some reason it seems to rely on some timer running in the background. That's not really necessary as all that's needed is calculating the difference between two timestamps and inserting the result in a plain text file.
"Any sufficiently complicated note-taking/productivity/GTD system contains an ad-hoc, informally-specified, bug-ridden, slow implementation of half of Org-Mode."