Nope. I haven't bought Mario Kart 8 and no plans to do it.

Add TES and Fallout to that list I think.

I don't think I'm a sheep. Pretty sure I dislike all of the most well known franchises that churn out buggy game after buggy broken game.

boycott?
I just buy whatever I want. If I want to buy a game that is called 'shit' then I buy it. If I want to buy a game that is called amazing, then I also buy it.
Core of this story is, don't be a sheep by not being a sheep.

Let's see...

Last EA Game I bought was Dragon Age: Origins, because of Origin and shitty practices.
Last Ubisoft game I bought was Child of Light on my Wii U, last one before was Rayman Raving Rabbits. Boycotted already years ago because of Uplay (which is not needed on my Wii U, else I wouldn't even have bought that one game) and since it seems to get worse every game...
Last Activison Game? Can't even tell you if I ever bought anything from Activision. If not, the last Game of any of their IPs is still Warcraft III.
I don't have a PS4 or Xbox ONE (and not considering buying one, especially with those problems right now), so Driveclub and Halo MCC also fall under the table

Doesn't really look like sheep to me

I buy what i like and i like what i buy.

Why?

I don't like the direction Nintendo is heading MK with 7 and now 8. I'm just voting with my wallet.

I've boycotted all EA and Ubisoft games successfully for years, until they actually start making good games and stop trying to price gauge consumers.

Halo though... Despite the crap match making, terminals not working, crashes, skipping levels, achievements not unlocking, DLC not able to be redeemed, the 20 hour install time, variable framerates which proves to me that consoles are become more inconvenient than PC Gaming.

However I just can't give that one franchise up, I will continue to buy every release, I need an excuse to use my Xbox One more than a couple times a year, the sad part is, console gamers have more of that to look forward towards, this gen.

I buy games I want and know will be fun. I skip the yearly Fifa, Maden, CoD games and also the gimped ports as I don't really feel I need to support crap just to show my support as that only leads to more crap. so I'd rather not have it at all

While the OP is kind of inflammatory, I can kind of see the point he is trying to make. I really dislike EA for the most part (for example), but I will in fact be getting the next Dragon Age.

For me I think it is more about the particular series then the developer behind it. I usually give the series 1 do-over if I really enjoyed it;s first offering. If the sequel is a steaming pile then I won't pre-order #3 but I will pick it up eventually (usually after some good word of mouth or a reduced price). If that one stinks (or is bugged etc etc) then I am most likely done with the series (Like Battlefield, Final Fantasy, Halo, NBA Live, Madden, Assassin's Creed etc etc).