This isn't Tumblr, so expect a different community reaction to how you post here. Offer proper attribution to the original content creator with a direct link. If you decline payout on copy/pasted material, you get exactly the same rewards you would on Tumbler anyway, so why are you so opposed to doing so? Following these basic rules ends the flags.
If you post original content, by all means, accept a payout. I would rather be encouraging that than flagging porn spam and plagiarism.