I'm a little disturbed that some people are actually even defending this franchise.
Here's the thing: I love bad movies, I have a whole shit-ton of B movies in my collection, most of them being ultra low-budget schlock that are great for laughs.
Michael Bay on the other hand, uses quarter of a million dollars and puts out movies that, in comparison to those same low budget schlock movies, have less coherency, less likable characters, and less charm.
As for those who tell me "what are you expecting? it's just a popcorn movie/over the top action movie." I expect at it to have least a coherent plot, some form of consistency, and a noticable lack of groan-worthy juvenile humor being shoved down my throat. These are elements that most other popcorn/action movies can handle, yet the Transformers series has not managed to grasp these int he slightest. Just because it's a popcorn movie doesn't mean it has an excuse to be crappy.