"Like others have already mentioned, that's a developer who saw the blood on the walls. They've likely seen this issue before and know the signs to look out for

"Like others have already mentioned, that's a developer who saw the blood on the walls. They've likely seen this issue before and know the signs to look out for. It doesn't make them any smarter but it does mean they are wiser/more experienced with this tech stack." This. Exactly right.