cfn, richard's often rejects with that reasons rather than "we had too many submits today" or "we just didn't like the site much" or "we already listed that content for someone else last week". That seems to be the default response from them, I have gotten it a number of times of galleries I know are up, running fine, etc.
Don't take it as an indication of anything other than they are full for that day.
Alex
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