i understand boths sides of this. the question is does the mods here want to grow this site bigger then it is?
The reason i say that is if you restrict the images to only memebership you ruin alot of peoples first opionion of what this great site offers!
That in return will push people away instead of growing.
If i had to make a choice i would say no dont restrict it. the pictures that are part of reports are the main attraction. why would you restrict pictures when its very obvious that the posts that get the most attention are the ones that have pictures in them.
Just my thoughts!
Cheers!