Aveatry doesn't know much about the Apollo program, which is fine. The book 'A man on the moon' by Chakin is excellent and gives a really good overview of the Apollo program. Worth reading. If he had read about it he'd know about the camera issue when Bean broke one and other trivia about photography on the lunar surface.
Aveatry also doesn't know about photography, which is fine, but he failed to Google it even briefly because of he did he'd find out that lens flare is caused by frontal light sources.
Aveatry didn't know about other photographs showing lens flare over the regolith because he didn't look. A routine part of any sort of investigation is looking for something that would disprove your theory. "Can these appear without aliens" should be the first thing you check when you're looking at a UFO. Aveatry didn't do that.
Just like the links to videos he's ignorant and lazy. One or the other is manageable but together you get, well, Aveatry and his circle of cheerleaders.