I often leave negative trust feedback for scammers before they scam anyone, or after they scam others. I don't often get scammed myself.

After these changes, I don't see a way of doing that any more, so what should I do?

When I see someone who is clearly untrustworthy, do I check "I was scammed" even though I wasn't? Or do I just not leave them any feedback, since they didn't personally scam me?

Perhaps the wording next to "negative" should be changed from "I was scammed" to "this person isn't trustworthy".