When I uploaded this, I too noticed it was different from the others and I was just asking who the two were that weren't in the other pics in this set. And lolicon isn't a problem.
Yes, because we all know that drawn fictional little girls are accurate depictions of real children and having an interest in them will inevitably lead us down the path of becoming pedophiles. Only a person with some major issues would ever enjoy such a thing, probably just as bad as a person who would join up to a website that has such material to criticize those who enjoy it.
The user joined on the same day he posted those comments. He has 0 favorites, 0 edits, and the only thing listed from him at all is of course that he posted one comment, the one above. Since you can't leave comments without an account, I'd say there is a very high probability the only reason he joined was of course to post that one single comment.
Personally I wouldn't care except that the first notable thing he did was start criticizing others.