Thinking about screen size, is it fair to assume that most people are using at least 1024*768? If so, bigger sigs could be allowed, because of the size of the screen that they cover.
Midland referred to clutter - as a former moderator on a different, non-Trainz related board, I can tell you that we didn't set a size limit and it was chaos. There was one person who put a very tall portrait sig on, and refused to change it because we didn't write a rule down saying he couldn't (We kicked him off later for other misdemenours [sp?]).
Moral - you need a limit.
Personal opinion: Sigs break the uniformity, so I would recommend people have something (small). Most sigs are works of art (The one from the aforementioned board someone made for me, but is far too big for this board). Sigs also make good adverts, and I like ZVW's idea of using the old 'DLS' ticket.
Midland referred to clutter - as a former moderator on a different, non-Trainz related board, I can tell you that we didn't set a size limit and it was chaos. There was one person who put a very tall portrait sig on, and refused to change it because we didn't write a rule down saying he couldn't (We kicked him off later for other misdemenours [sp?]).
Moral - you need a limit.
Personal opinion: Sigs break the uniformity, so I would recommend people have something (small). Most sigs are works of art (The one from the aforementioned board someone made for me, but is far too big for this board). Sigs also make good adverts, and I like ZVW's idea of using the old 'DLS' ticket.