It's arrogant and silly, as others have said. People have the right to say what they want on the subject of religion so I don't think people should "stop" doing it, cause it's their right to. If you do thank "god" for your victory, you should have your belt stripped for taking the ultimate steroid. Having "god" winning your fights for you is cheating, is it not?
“Anna, my strong, terrifying Anna.” -Cas
"You lack the testicular fortitude to study under me" -Elodin
“slow and drunk is no match for fast and scared shitless.”-Jacob