There are two small red pixels one above and one below the normal dot. I made arrows if the resolution of the picture is too bad.
Red dot weird bug since the alpha
Yes. God yes. I also pointed that out months ago. I hate the aimpoint for this very reason (that and the fact the dot itself looks more like bright red cotton than a proper red point of light) and hence never use it.
EDIT : I'll put the link to my topic here too, just in case. This really needs to be fixed !
https://forums.focus-home.com/topic/30869/red-dot-artifact-not-game-braking-but-weird-anyway