A couple days late to the discussion, but my thoughts on anti-tanking rules.
I'm perfectly fine with (and frankly probably in favor of) rules tied to performance on the field. So win targets/floors, whatever I am fine with, whether they be individual season, cummulative over a few seasons, percentage based, improvement based, whatever.
I am (very) strongly opposed to any restrictions on player or finance management. If I can win 90 games with a team of Rule 5 draft picks while building a powerhouse through Int'l scouting/signings, so be it. If I can win 90 games with a natural DH at SS and a natural CF as my closer (good luck with that!) so be it. If I can win 90 games with 2 max contracts supported by a bunch of league min. role players, so be it.
Efforts at stopping tanking shouldn't restrict innovation. Tanking is tied to winning/losing (in large part for the high draft pick); anti-tanking measures should be tied only to winning/losing as well.
My $.02.