Do You Add transitional "fades" to your members videos when you edit them......?
 

Does a fade in at the beging and a fade out at the end make a difference to the viewer?

I do add transitions, though if it really makes a difference to members, i'm not certain. I do get lots of fan compliments on production values though, and it really doesn't take much time to render, so I don't see why not. I add crossfades and whatnot too, if the action doesnt match for a clean cut.
I went to film school though, so some of this might just be me using my powers for evil.:thumbsup

I do the same, transitions for both the video and audio. I was thinking about some member feedback I was reading on a review site and a few people had posted they use "joiner" programs. That would make a good member survey me thinks.

definately. let us know what you find out.