There doesn't seem to be an uninstaller for CS3, and I've tried the CC Cleaner tool several times. It doesn't work and it is not correctly documented anywhere. For example, there is no log file at "/Users/[user name]/Adobe Creative Cloud Cleaner Tool.log" as one of the Adobe pages states. For example, there is no log file at "/Users/[user name]/Adobe Creative Cloud Cleaner Tool.log" so I can't find any success or error states of the tool.
There is a log file at "/Users/[me]/Library/Logs/ACC.log." Would there be anything in there that could shine light on install issues vs. uninstall issues?
Regardless, running Cleaner and then attempting to install ACC repeatedly leads to the error "Creative Cloud quit unexpectedly" upon launching it or rebooting (which launches it automatically). I've been trying various things for weeks to no avail yet.