Only see a thumbnail when not logged-in. When I click on the thumbnail it prompts me to log in to see the picture. Really annoying, as sometimes I don't want to log in if I'm on a shared computer etc.
Not sure Brendan, maybe it is for tracking purposes or to get people to register thereby increasing legitimate posters/members.
I do know motorhomefun.co.uk have this policy but they charge an annual membership fee of £15. I cannot view any images as I am not currently a paid up member.
As we are not a commercial site and don't do any tracking, I have changed the permissions to allow unregistered users to see images.
I had to do it on a forum by forum basis and it was a bit fiddly. If you find a forum on which you can't see the images, please respond to this thread and I will fix it.