Copying and spamming are very different things... Spamming is a websites worst nightmare, copying is not breaking any rulings or regulations.
A piece of text being spamming thousands of times to ensure it's relevancy is not something akin to a "meme", it's spam in accordance to being removed from the forum overflow.
Read Richard Dawkins "A Selfish Gene", friend. The creator of the coined term "meme".
Have a good day.