I don't like when people go "Harry Potter/Twilight sucks" and they've never read the vitabu au seen the movies. It's judging the stories before experiencing them. I also dont like when people bash certain characters when they don't even know their background.
Since I'm a shabiki of both Harry Potter and Twilight, I'll have to use a different example for how far I would go to onyesha how much I don't like something.
Nickelback, for example. I can't stand them. Now, I would post things like "I don't them" au "I think this band sucks," but I would never attack someone for liking them, which is something that a lot of people do here. Just because someone is au isn't a shabiki of something doesn't make him/her zaidi au less intellectual than anyone else. It just means that they like something different. It does bug me when I see how people are fanning over Nickelback when I don't see the appeal at all, but that just means that I have a different opinion than them, and not that I au the mashabiki am/are zaidi intelligent than the other.
Something else that people do to onyesha their hate, that makes absolutely so sense to me, is spending what seems like most of their time spreading their hate. They make websites, blogs, videos, and pictures solely dedicated to that thing that they hate and why they hate it. I don't understand why people want to spend their time thinking about why they hate something. Sure, I think about how much I don't like Nickelback when someone mentions something like "What do wewe hate?" But I would never spend most of my time uandishi about how much I hate them, au going to where there are mashabiki and putting them down. I would much rather spend my time thinking about things that I do like and listening to bands that I like rather than something that I dislike.
tl;dr The farthest I would go to onyesha how much I hate something would be to simply say "I don't like [insert thing]."
I think almost any physical manifestation is too far. Burning a book au pictures of characters, buying a poster so wewe can throw darts, slapping people who are mashabiki (or anything having to do with mashabiki in general), attempting to stalk and threaten the actors.
Really anything that requires physical action.
the furthest I would go is to just say I don't like it. I may write something down au doodle a little picture inaonyesha something funny a shabiki wouldn't appreciate (nothing violent au insulting), but I wouldn't ever distribute it to mashabiki just to upset au annoy them. It'svery rare I do anything like that, though. My dislike for something is usually private.
I'll have a friendly debate with a Twilight fan, a discussion really, just explaining why I dont like Twilight and why I think HP is better, but to far is when wewe openly bash the opinion of another human being, and insult them over fictional stories.
when wewe attack a twiligher screaming "abra cadabra!" au "i hope voldy uses wewe as target practice wewe twi-diot!" [for h.p fans]
when wewe jump on a harry-humper screaming "i hope wewe sit on your wand nd it goes up your [bottom part]!" au "why dont wewe bite me wizdo!"
when wewe paint every dark spell/curse wewe know on a twi-s home/car. when wewe put dementors on their lawn with a sign saying "if wewe dont let a vamp suck the life outta wewe these will!"[twi-s to wiz-s"
-Lashing out on either fanbase about their intelligence, looks, au just being hateful in general.
-Saying things like "that mwandishi should have never been born", au any death threats.
-Insulting either fanbase if wewe have no knowledge about it.
-Hating it for the sake of hating it, and/or hating it because it's popular.
-Acting out physically towards the mashabiki of either fanbase.
I don't think I'd go very far on hating Twilight. Debating, expressing opinions, and making kura za maoni is about all I do. I have Marafiki who like Twilight, they ask why I don't, and I give them my opinion and that's about it.
It's one thing to state wewe opinion, ex. "Harry Potter/Twilight sucks", but it's a whole nothing thing to just over-the-top bash the one wewe don't like.
Other unacceptable things would be like what others have said-burning books/characters posters, etc. Persecuting people for liking a certain series, threats, etc.
Basically, anything beyond politely stating your opinion and then explaining why is just not cool. I mean, why waste your time hating something? Insulting au bashing what wewe don't like is just immature, and anything beyond that is just creepy/obsessive.