I think you unfortunately misread the comment.
As there is only one reference to scans other than the two you used, I suspect you are referring to this…
You will notice the words ‘and’ and ‘just’, these are very important for the context of those words.
Whilst I’m not speaking for @Zammer3D I believe what was written matches my understanding of it.
Firstly, it’s clear they agree that using a scanner is fine, but, if there are no photos provided as evidence (the whole point of this post thread) then it’s not fine.
A further understandable point is a distaste for those who use the scanner to take work of someone else’s hard work and upload that. I will give an example, scanning a Disney Mickey Mouse sculpture and uploading it should not be allowed as its copyright theft.
This thread is and has always been about people not providing actual photo evidence of their correctly printed models using the profile they provided and instead using renders and worse renders designed to make people think they are real photos. It’s deceptive and against the rules of submission.
In short, scanners not bad, renders not bad, not providing actual evidence of a successful print IS bad, faking that evidence IS bad, copyright theft IS bad.