Just an FYI to commishes that you can get a bad deal vetoed, even in worlds where vetoes are rare.
I sent a sitemail to the 30 owners not involved in a very lopsided trade. Also discussed the deal on the chat board. I laid out my reasons for why I thought the trade was lopsided, and also noted that one of the owners (the one getting screwed) was new, and if he's a one-and-done owner, that would really hurt his successor.
Both the sitemail and the chat board post generated a healthy discussion. The two owners involved didn't protest.
Ultimately, 13 owners vetoed the trade. The two owners may try to rework the trade, although the seller (the one who would have gotten screwed) is likely to field offers far and wide for his two pitchers.