I realise it is the links on the front page to the images. What I mean by it’s randomness is there are always links on the front page. Always linking to a small number of servers. Only ever loading an image. Sometimes the warnings appear, other times not even though the images are coming from the same server.
It is never correct in its accusations. Those images, and the way they are loaded, are not going to deliver anything dangerous to you.
I had one warning pop-up on the “My Open Edits” page when the only images in view were ones I had uploaded the day before…
Their scam warning is not narrow enough. It has no ability to understand the concept of a shared server. So it sees something bad on one little corner of the Wayback Machine and then paints the whole huge server as “bad”. There should be the same warning for anyone visiting GoogleDrive as there are bad things hosted in corners of that too.