Perhaps,
but what you are doing with that comparison is ignoring the context. There is quite clearly a non-serious atmosphere about the place, whereas a public wall is not in a non-serious context.
(s0WmVHAwZgpG, Mon 4 Jul 2005, 13:54, archived)

This is a public website.
All the time there are racist-looking posts on the board we are turning away nice people or, worse, attracting real racists.
( Newington, Mon 4 Jul 2005, 13:56, archived)