What part of that addon was it that makes you guys use it despite the issues and the fact it's not being updated.
1. Profiles (can switch between "solo raiding" bars/macros/keybindings to "multibox healing" bars/macros/keybindings to "multibox dpsing" bars/macros/keybindings in a couple clicks)
2. Unlimited # of buttons, macros and ginormous macro length

You could actually use Macaroon much like you do normal WoW -- you just bind things to action buttons (the standard WoW bars) rather than Macaroon buttons and they'd show up as normal when you log in without Macaroon present. Of course, that means you'd have to use normal /macros and the like, but it's very flexible. I moved to Macaroon from Trinity, and moved to Trinity from Bartender -- I'd hate to have to resort to going back to Bartender. I used to keep a seperate WTF folder just for switching between raid healing and multibox healing (main) and multibox healing (follower) that would swap all of my in-game /macros, and just design my macros and bars around this limitation. Really sucked, though.

The dev for Macaroon was actually quite active (even here on these boards), but from what I understand, his reason for being MIA has to do with an inability to access a computer at this time. I'm hoping he's OK, since when he was around he was great to work with.