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 ::I'd like to commend you all on your excellent work on this entry, especially on the difficult research necessary to provide ample, high-quality sourcing. In terms of further walls, unless there is a strong content-based reason for separating them, I would imagine that they could exist here unless/until they grew large enough to warrant a forking, and a change of name might be all that is necessary to alter the scope. Keep up the good work. Cheers, '''''' "