This. I hope this community's definition of a troll isn't "someone who dares to criticize the perfect work of our lady and saviour" because then you're gonna have to ban me too. I've made almost the same comment as this guy a long time ago, and have criticized other things about the comic as well. The guy did give a somewhat rude reply to Aliax, but that's certainly not enough to call one a troll (I haven't seen other comments by him). He just said what he feels about the comic - and if I were Minna, I'd like to know these things. Some people aren't very pleasant but don't mean to cause trouble. Just don't engage with them and their comment gets drowned soon enough.
I think one of the reasons for this response for the third comment is
this post from early on in the forum's history. Now, because this comment was throwing criticism in a fan forum where Minna can't actually see the message, this is most definitely a troll, as it provoked many reactions to the post.*+ Apply this troll scan in every situation, and we get the third comment, which may or may not be a troll, as Minna would maybe have been able to read it. Of course, here, this person's intent is not as clear, so labelling them a troll may have been too soon.
*quote: In Internet slang, a troll (/ˈtroʊl/, /ˈtrɒl/) is a person who sows discord on the Internet by starting arguments or upsetting people, by posting inflammatory, extraneous, or off-topic messages in an online community (such as a newsgroup, forum, chat room, or blog) with the deliberate intent of provoking readers into an emotional response[2] or of otherwise disrupting normal on-topic discussion,[3] often for their own amusement. From Wikipedia.
+Eleven, to be precise.