More of a statement than a question.  Here is my updated list of files to hunt down and eradicate when trying to do a clean install of DraftSight on OS X:

/Applications/DraftSight

/Users/Shared/DraftSight

/Users/~username/Library/Preferences/com.3ds.draftsight.plist

/Users/~username/Library/Preferences/com.dassault-systemes.DraftSight.plist

/Users/~username/Library/Preferences/com.swactivation.K2.plist (assuming ‘swactivation’ means 'SolidWorks Activation’; found my registration email listed in the Info window)

/Users/~username/Library/Preferences/DraftSight

/Users/~username/Library/Saved Application State/com.3ds.draftsight.savedState

DS 2015 SP3  |  OS X 10.10.4