Bob,

You're entitled to your opinion, of course, but I'm interested in telling the OP where the most appropriate place is to post questions about cross-application issues.

Having "the bulk of the work" done in Excel doesn't for one moment suggest the Excel forum is the most appropriate one. If the issue of where the data are maintained was to be used as the determining factor, one could argue that almost all of the Word mailmerge posts should be moved here too. As for:
without placing too fine a point on it, the cross-posting issue arose due to the OP not picking "the right one", but picking more than one...

As for your take on the cross-posting issue in general, whilst the etiquette expressed in the links applies to posting across multiple boards, no board that I know of allows cross-posting to forums within the same board.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]