*The* worst? Not sure I've seen it yet. The questions I consider *most poor* are any of the step-by-step/spoon-feed-me/SendTehCodezPlz type questions. Especially when followed-up with combative commenting (from OP) and/or a general disregard for autodidactic/RTFM/Google.

*e.g.*, [What does ESXI server do](http://serverfault.com/questions/91537/what-does-esxi-server-do)