What if all your points have already been covered? Then your only choice is whether you want to be accused of parroting or being called out on not scumhunting.
Because, that happens to me a lot.
Well... Then it's tough.
For one, DON'T EVER SAY THAT YOU ARE PARROTING OR THAT YOU DON'T WANT TO LOOK LIKE YOU ARE PARROTING OR NOT SCUMHUNTING. I know you say that a lot, and it's the STUPIDEST thing to say. It's like you're serving your own miniature dishes of WIFOM and then heap on extra.
If you are agreeing with people, then say that. It's okay to agree with people, since, surprisingly, that's WHY you're trying to show people are scum. If you agree, then say WHY you agree. Here's a good explanation.
Person A has said Person B has avoided questions repeatedly and refused to take a firm stance on everyone. You look at the evidence and conclude that Person A was right, because in post A, B, and C, he acknowledges these questions but never answers them, and in Posts D and E, he has been wishy-washy on who he suspects, followed by his never having voted for anyone.
While this seems like it might be parroting, it's not. You are using the same reasons, yes, but you are supplementing your support for these reasons with your own. Heck, if Person B is being suspicious enough, there might not even need to be reasoning. Just say: "
Person B, you are being incredible suspicious and have no reason to be." If you think that you are justified in doing so, DO SO.
The point is that if you feel like you are parroting, then MAKE IT SO YOU NO LONGER FEEL LIKE THAT. Don't SAY you're not parroting unless someone says you are - unless you feel like making your own arguments against yourself. The point is to show how other people are suspicious, not yourself.