My loot quality seems to have changed as well, but it is hard to tell because I am only running 3 bots at the moment (lost 5 in the last "small wave"). Up until 1.06, I vendored everything that appraised less than 1 mil, and reduced the price of my auctions by 35-40% when they didn't sell or else my stash would fill up with waiting items. Now I've had to start keeping crappier stuff and holding onto it longer to keep my auction slots full. So... purely anecdotal, but it does feel like good stuff is much harder to come by since the patch.