Given the fact that people hear seem to like them for some reason I'll keep this civil, but never liked them for their manufactured sound and clearly marketing based created music rather than any real soul in it....
That said, gotta be in a bad place to end the greatest gift we get on this Earth so all I can say is suicide is never the answer, no matter how bad life might seem, if you end your life... you can't solve any of the problems.
I hate all of their albums except for one,I especially hate the earlier ones that almost everyone has referenced in this thread. I'd suggest you give "A Thousand Suns" a thorough listen from start to finish though. They're definitely talented and have not stuck to the sound that made them famous.
As for suicide, don't think of it as an answer. Some people get isolated enough that they feel dead long before they commit suicide. It's not always as simple as it's portrayed.
I might well check it out as most of the VGchart recommendations have gone fairly well for me, will give it a listen and see what I make of it.
And of course, I've been to fairly bad places in the past, but would never consider this simply because I wouldn't do something like that to my family and friends... ever, to leave them alone thinking that they might in some way have been at fault for not stopping you doing the act, but yeah... like you said, it's never a simple thing when someone takes their own life.