He obviously liked the build. He even said he wasn't taking credit for it? Is that wrong?
"Omg, I like X's build."
*saves*
"Uses save on multiplayer server and tell how much you like it."
*Person comes in who didn't see that you take no credit and love the build
You then go and tell him how much of an idiot he is to like a build and use it, when he doesn't even claim it as his own.