There you go https://theintercept.com/2014/02/24/jtrig-manipulation/

Of course you can never truly prove someone is a "shill", but it was the entire purpose of Correct the Record during Hillary's campaign. https://en.wikipedia.org/wiki/Correct_the_Record

Internet shills definitely exist.

On the other hand, I've been accused of it three or four times, and, no, nobody's ever paid me for posting things on the internet. So it's also definitely an accusation flung around in cases where it is not justified.

That's exactly what an internet shill would want you to think ;)

Well, I guess now I've been accused of it four or five times. However, I claim most strenuously and in the strongest terms that zolthrowaway did not pay me to post this. I claim it to be so with downright suspicious strength and vigorousness, in fact. Believe me.