If you want to dislike the hire, that's fine, there's a number of reasons to not like it. The hating it just because the Bills picked a coach is..well..stupid. They had to pick someone and even if they hired Belichick away from the Patriots, people would consider it a terrible move.
There's some posters here who are rooting for them to fail so they keep saying "I told you so" which is more important to them than the Bills winning.