I have a picture of most of the regulars here..
Lumberjim - I picture him to look just like 'Al from that show tool time, with a red flanno jacket and a tool belt.
FileNotFound - I used to picture him as a guy with a real square jaw and short blone hair and a clean white shirt, when i saw the pictures of him i dont think it was anywhere near the picture i had in my head. I thought he would look younger.
LadySycamore- I imagine to be always really well groomed, and i cant imagine her swearing.
xoxobruce- i have an uncle named bruce and you know how if you havent met soemone but they have the same name as someone you know, you kind of place a preconcieved stereotype of them? my uncle bruce is really flamboyant, and bright, i see you as the same.
Undertoad - I see as a jeans and t-shirt kina guy with an underlying sense of authority, that he will exercise when forced. i see short brown hair and a 5o'clock shadow.
Riddil - Well we have all seen his happy snaps
Nothing But Net - i see you having glasses (rounded ones) and slicked back hair and black jeans and a pale complextion.
Elspode- i see as a normal loking guy but with a larger forehead than most due to the stress and deep thinking he portrays in his posts.
Blue58- i see you as very petite, maybe with strawberry blonde hair and a small sharp nose.
blah blah blah...
but you probably all look/are completely different, but these are just some of the images that come to mind when i read your posts.