Yeah, but the text is small, and the box is conveniently checked so that the majority of morons will end up the toolbar anyway.
Another thing that Adobe does is screw around with Windows registry settings so that every time somebody updates their Reader, the registry settings get changed, which basically affects Outlook in a negative way.
If you ever hear about someone going off on a murderous rampage while screaming something about "load behavior", that would probably be me.
The Adobe updater is very annoying too. If your on XP you can msconfig it and disable it. It doesn't show up as a service you can disable.