They didn’t even say he found it offending. Just that they found it displeasing.
They then spent the rest of the comment talking about how they keep it to themself and doesn’t attack or act otherwise negatively to people who use them. The way a healthy person handles such things.
Meanwhile you’re the one actually flying off the handle and getting offended by this. I would suggest some introspection as to why you’re so bothered by a random comment on the internet like that.