Keep in mind that it becomes more of a chore and complicated if you have multiple listings at multiple places to keep track of. It's much easier to start a sales thread, at say, "NamePros" and then promote that thread through your social networks (E.g. FaceBook groups, LinkedIn groups, Google+ circles, CraigsList (If applicable), Other communities that have an external sales forum you can list in, Etc.). This not only makes it easier to manage your listings having only one vs. five or ten sales pages for the same domain(s), it also allows you to manage your time more productively driving more views to that listing, increasing the odds of interest in your favor. Keep in mind that most marketplaces have a rule in place that doesn't allow you to run an auction for the same domain at the same time anywhere else anyways.
Naturally, I'm not saying that you should blast any sales page links randomly everywhere. However, if other places have a designated area specifically for promoting, you might as well utilized it to benefit your bottom line and promote your sales listing.