I like this idea. WO loses HC Advantage the following week, for every week that WO (to include Relegation/Play Offs).
WO team loses his TV Contract for every week he WOs. This Money is then divided amongst the other teams equally.
(Not only does he lose the money, but he gives every one of his competitors a slight boost).
Now, the HC Advantage may just help him Tank more, but you start taking his money and giving it to others and that will affect him. For instance, if a Team in an 8 Man Conference of a Division were to WO for 7 Consecututive Weeks then he just paid each of his Conference Rivals a full weeks worth of TV Contracts. That would be pretty huge. Just doing a WO once would mean he loses a full Weeks worth, and each team gets 1/7th of a TV Contract Bonus. Not much on the opposing Gain, maybe 1-2 V League Salaries, but still helps.
If a Team has Home Court and WO, the Away Team should get the Merchandise Sales/Gate. This would be very huge, and very hard to make up. People would have to really consider if they want to WO or not then.