The random appearance of signatures can really disrupt the visual "flow" of the forum page, for me anyway. Pictures, marquees, animations and blocks of coloured text break up the visual distinction of the posts, somewhat akin to disruptive pattern camouflage breaking up the outline of objects. I find it really aggravating, but since I don't want my preferences to stomp all over other people's enjoyment, I seek the user option to display or not.

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