My reason for truly despising Coldplay is completely logical to me and probably only me.
One of my favorite bands are Teenage Fanclub who,to me write beautiful songs and deserved to be huge.
Along came Travis and watered down the Fannies sound with weaker but more commercial elements and became big.
Coldplay came around and watered down Travis' version of the Fannies even more and became huge, with added pomposity.
My logical reasoning..
And I stand by it.