From what I've seen on here it's just laughing at the comments of their fans and the way they portray themselves. I've not seen anyone say that they think we are rivals?
I don't hate them at all but the phrase which you use above I think explains well what irks me about them. They come across as thinking that they deserve success and that its their right to be in top 4, regardless of whether they're any good and whether others are better. Its always someone else's fault with them, and rarely their own shortcomings. Added to that, its irritating that ex-Liverpool players dominate the media and tv pundits and the way they get a ridiculous amount of media coverage as a result despite them not being a top 4 regular team for a long-time.