Can uploaders express their concern?

Hello there, I've been in a situation where an uploader was telling the readers that the negativity of the comments was affecting him and for this reason he may stop posting the story. There were different opinions about it, but the one that caught my eye was that since he isn't the author, he has no right to complain. Just cuz he isn't the author, I don't think that he deserves less credit because he puts work in order to be able to post chapters. And he may be sensitive a sensitive person (obviously) and genuelly cares about the story and characters. So I was against with the people with this thought. This until a person from the scangroup came out and said that an uploader can complain if people were against his prints, but not for bitching about the story/characters.
And it makes sense, but does it mean that the uploader can't express concern and he just needs to deal with it?
I strongly believe that all people needs to be heard out and even more if a person puts work to do something for other people to enjoy