Do you even know what a 51% attack is? Do you know what can be done using it? Do you know what would happen if a pool tried to do it?
Let's do a mind experiment. Assume BTC guild, right now, has 60% of all the hashing power. Now explain to me exactly what they would do in order to pull off a "51% attack", exactly what they would accomplish by doing it and most importantly exactly why they would do it.
Please don't talk down to people like that, it's not constructive, and given the nature of a lot of the conversations on this board, I don't think this was an invalid question.
I'm relatively new to bitcoin, so some or all of this may be off, feel free to tell me where I've gone wrong, after all, I am trying to learn.
You did good, hehe.