Previously you could search for llinwood and sidneypowell1 on Twitter and they would hit on the search results. As of tonight this is no longer true, as they don’t show up in the results. This is why so many (myself included) are falling for the fake impersonation accounts.
They are clearly DIRECTLY over the target.
I think they have been for a while.
Twitter also seems to allow the fake Powell account to stay, even though it's clearly intentionally deceptive.