I boycot Sony since they blocked my PSN account, which got hacked due to them! Purchases I made are not available, ... I really took a disliking before when they refused to fix my Vaio laptop, ... this was the last drop!

Good, but only laws will keep them on check. If I boycotted all companies that have done something wrong, I would boycott all of them. I keep that option for the worst offenders. Laws and regulations is what keeps companies in check.