Neat. So far, I've updated various (rarely-used) OMNI apps and removed GBSpotlightImporter.mdimporter, which in my case was from 2009. I'm guessing this (it being way outdated) is because I don't really use Garage Band. Doesn't seem to be enough just yet…
Other Mountain Lion mysteries:
- CalendarAgent (and, less frequently, AddressBookSomethingOrOther) randomly taking up 100% CPU for a minute, then quieting down again
- Messages like "4/3/13 9:59:32.621 PM Finder[15854]: [QL] Can't get plugin bundle info at XTUM/ -- file://localhost/"
The former has suggestions like deleting all calendars and somesuch; I've tried countless times. The latter may be a case of old .qlgenerator bundles?