If I find a good joke that I can just copy and paste, I'll acknowledge the source. Far more often I find with a longer joke that I can edit it to make it more pithy, and I might change a few details too. All good. It's called the "jolk process." But seeing a beautifully literate but unattributed copy-and-paste posted by someone who we know to be semi-literate is, er, no joke...