Been thinking about this a lot lately actually. Had one at the top of my stairs back in 2019, just standing there in the doorway to the landing. Solid black, no features, just a shape that was somehow darker than the dark around it.
The doorway thing isn't a coincidence though and I don't think it's just because thats where we naturally look. There's a theory in demonology about thresholds being liminal spaces, points of transition between one state and another. Doorways, staircases, mirrors. The idea is that whatever these things are, they exist at boundaries and doorways are literally boundaries built into the structure of a place.
What gets me is how consistent the reports are worldwide. Different cultures, different languages, all describing the same thing lurking in a frame. That level of consistency has to mean something.
Anyone had one somewhere that wasn't a doorway or threshold? Genuinely curious whether the exceptions exist or if its just always the same spots.