I am not after your for copyright, I dont care what you do so long as you are not spamming the forum constantly to earn money.
However tracing back that image of the spinning ball (even if i know to pull image source some may not) gives me no greater chance of attributing it to the original source creator than if it was just posted here on bitcointalk servers
So it is no better than copy and pasting the spinning ball text straight here in terms of reference to the original source and not claiming as your own
A newbie who wanted to spam with this method could find spinning ball texts or whatever slap them in a pic and embed then via 3rd party host into threads here where they are mildly relevant .... a bot could do this and there would be according to you no way to act against them
To me it is actually away to get away with using non original text or material without attributing or referencing the actual source ... it is get out of jail free benefit from others work. I can tell you know I bet someone doing that a lot for financial gain would be in trouble. I would not be surprised if this is the next noob way of spamming of non original work and will be hard for spiders to jump on too.
Newbies cannot post images.