Who are you talking to?

This is totally off topic, but I'm wondering when the posters here reply
to another, if they have a pre-conceived image in mind of the individual
they're responding to?

For example... For me (in my mind's eye):

Thinbluemime -- Ward Cleaver  
Tdciago -- Helen Hunt     
Fred Ellis -- Wilfred Hyde-White
Steven Litvinchouk --  Steve Howe (YES guitaist) 
Ryan Robbins -- Robert DeNero
Neil Harrington -- Robert Redford
Robgood -- Christopher Lloyd
Melroseman -- M. Night Shyamalan
RWGibson -- Steven Baldwin