^^ Had to smile at that nice diagram. One can see what you mean. Because it looked like such a potentially nifty PIM (Personal Information Manager), I downloaded/installed
Tomboy - gtk-sharp-2.12.8-1.win32.msi in 2009. I was amazed at the complexity of just
that installation. I was later reminded of it by this Dilbert cartoon:
With all its potential, and including that superb (possibly unique, so far) auto-hyperlinking of common/frequent references - redolent of Lotus Agenda - in the wiki notes,
Tomboy doesn't clear many of the bars on the
Comparison of notetaking software - Wikipedia, the free encyclopedia. For example, by comparison, MS OneNote goes right across the page in both the
Features Comparison table and the
Formatted text features, others table.
So yes, excessively complex and possibly high maintenance - just too much trouble - unless (say) you have some other purpose for making use of that topological nightmare.