FAQ # 212: Maybe it's just me, but the sentence If you receive the error "Maximum queued posts for this community+poster combination reached," then it that you already have an entry in the moderation queue seems to be missing something.
FAQ # 239 is referencing itself
And FAQ # 236 proclaims: [Error: Irreparable invalid markup ('<linkto:>') in entry. Owner must fix manually. Raw contents below.]