I think people don't have so much problem with the other actors, the problem is with the footage they are given.
The month & half when Barun was on leave, people took the crap hoping that they would see some romance after that. We saw some of it when Khushi fell off the cliff, and they just wrapped it for god knows what! Everyone wished that it lasted longer. Everyone has had enough of the hate, and waiting for the love part of the story - Where is that? Is that going to come after people stop watching the show?
I know it's wrong to relate the actor with the character - people hate Anjali these days (Frankly, she is getting on my nerves too), and so they hate Daljeet in a way. It could also be because the news/ rumors of her leaving the show & the negotiation between her & the PH. For any celebrities, it's the part of their job. People love them to the core because of the character, similarly they hate them because of the negativity their characters bring. We have seen lot of bad guys being loved by their fans because of the characters that they play, so it's true the other way too.
The news from the sets, articles, spoiler set our expectations too high and people get frustrated when they don't get that.
There were spoilers about rain sequence during the kidnapping, then one apparently on Jun 15, then the ME. People even start predicting the background song, we didn't get it even after a month.
The romance/ wooing track - is this the one which is full of Anjali/ Aakash?
The ZABARDAST twist - we have been hearing about it since the marriage. Is there going to be one?
Every now & then we keep hearing about very interesting upcoming track/ episode/ week - all we get is some scattered/ forced Rabba ve's (which are anyway sad most of the times) in the episodes full of RM crowd!
The side characters fit well, if the story is weaved in that way. Where do Aaksh & Payal's tiffs or Mami's stupid tricks fit? And, they seem totally forced ones! Especially Aakash's new avatar! The actor should be given the length of the role according to his acting capabilities! If people are irritated, it means that it's not working. So the lesson should be learned & worked on!