It's worth a shot.

I realize this is requesting special treatment for a third-party tool.  But it seems much simpler than spamming the wiki with /usernotes /usernotes1 /userneotes2 and three get requests for every sub.  

FWIW, toolbox, on it's end, caches usernotes for 15 minutes, per sub.  So one larger get seems better than three smaller one.