Wow, the Dax haters are out in full force in this thread.

Just remember, some of us consider both Jadzia Dax and Ezri Dax a
highlight of the series, rather than a detriment to it.
- Bajorans: almost always inherently annoying and whiney. Always harping on ad nauesaum about "we were oppressed during the occupation!!!" --- we get it already, and did after the first 200x y'all whined about it too! And their noses are an eyesore.
This is my biggest problem with it. There were way too many episodes, especially in the early seasons, about Bajoran politics and religion. I could care less about any of that. What is most important to me is characters. I savour dialogue between characters just interacting to show the uniqueness of their personalities and how it causes both conflicts and affection to occur between them.
I couldn't stand all episodes where people babble endlessly about Bajor's problems, the prophets, the Vedeks, the religious leaders, the refugees, etc. I don't watch Star Trek for that stuff. I'm much more interested in unique characters and adventures.
There were many episodes where I'd just look away and do something else (i.e. surf the Internet) while the boring conversations about Bajoran politics and religion went on until something more interesting happened or was discussed. I also agree that the Wormhole aliens were a cheap writer's crutch and they were irritating both in concept (how they were defined) and in how they behaved.
People complain that in TNG there weren't enough conflicts between characters, so they were boring, but I prefer that to tweaking characters
too much, to the point where what was appealing about them in the first place is lost. I think Kira and Odo were vastly improved from the early seasons where they were just unbearably shrill blowhards, but Dukat was the opposite, changed from someone very multi-faceted to a one-dimensional villain.