I'd say the issue is that you see it as a complaint when it's simply an opinion.
I've personally started this thread because the moment I saw him, he stood out like a sore thumb to me, so I was like: Is it just me, or do others think this too? I was curious. The discussion eventually diverged to other characters. Some people thought other characters looked off, which is an opinion I don't share, but you don't see me going around accusing them of complaining. We just have different subjective opinions and we're sharing them.