I agree with you completely about the benefits of SO's, qzjul. But there are ways to overcome the market and cheat. H2o pointed out how these methods can work in an Express thread a few days ago.

It may seem like more work for the mods but I think you will find that if you ask them, they would like to have another tool in their repertoire. I have read threads by Warster and chatted with galleri that say as much.

So I still argue that the mods should be able to see market data about who sold and bought what.

I did check, they do. I'm not making mod market tools any time soon, that's a lot of work that would be better spent doing other upgrades first...