Finding all AD groups someone owns is as easy as:
Get-QADGroup -ManagedBy 'Dmitry Sotnikov'
(Obviously put your name, sAMAccountName, DN, email address or another identifier instead of mine. 😉 )
This is one of the nice little features added in QAD cmdlets 1.3.
Or with some output:
Now you can see which groups maybe you should no longer manage, or find nice unused groups for some safe experiments. 😉