Having skimmed a few pages it's hard to tell whether the Watford game will be effective or not. I'm glad something has at least been started though. There is a very stubborn group of supporters that just can't or won't see the wood for the trees. There must only be 6-7k in the ground these days - looking at the stands. Another 2k off that might not look much different.
It would also seem that many fans (me included) aren't attending games anyway. So as much as I would've certainly boycotted the game, my situation makes it irrelevant - as with many on here.
I'm sure this has probably been considered - perhaps doing the opposite for a game. IE All those who have had enough, are boycotting, lost interest, will come back when owners leave etc, attend 1 game. Spend nothing in the ground. Walk out at a given time - or stay for the whole game. Visually, mostly full stands will make a point. Especially when they are back to being a third full the following game.
If we could increase the attendance significantly, for one game, it would be a clearer indication of the number of fans they are losing each week. It's not dependent on those who refuse to boycott. Those extra attending would also likely be pretty vocal in the boards/owners direction.
All that said, it would probably need a good 8k extra on the gate to really be effective. Not sure there is the will for that either. Also would have to be a game against a mid table team with a small following so it can't be labelled a relegation clash or 'going to watch the top team play'.
Just a thought.