I'm not surprised that Mr. Carter was confused, he was under the impression that this was the Buy/Sell forum, not the "I'm going to give a free plug to ebay", forum. I am getting rather annoyed at this practice, most other internet Ad boards and forums pull anything with an ebay link or other commercial item unless they are paid Ads.
If you want to sell name a price, terms, haggle a bit, and have done with it. I don't see why a non profit organization like the Moped Army should subsidize a multi-billion dollar corperation like ebay inc. with free advertising when they clearly have enough to spend on their own. Most members of these forums check ebay on their own accord anyhow, they don't need to be prompted.