Why should not selected bids be made public? If I bid $1.2M on a house 2 months ago and didn’t get it, I don’t want the seller of a house that I just bid $950K on to have access to a datapoint that strongly suggests I’m good for another $250K.

In such a case, I’d predict a lot of partnerships (or whatever the lowest cost legal structure that isn’t traceable over time if not activated) would be bidding for houses. My bid as “123 Main St Partners” can be as public as you want I suppose.