Voyager had a LOT of ruined potential for character growth. Its like they wanted both worlds, the episodic nature of tng where 95% of what happens has no effect on future episodes, and the great overarcing storyline and character growth of ds9. I mean just look at the doctor as an example. This guy goes through a LOT from forming a career outside of medicine, creating a holographic family, falling in love with a couple of flesh and blood types, and is constantly on a mission to make himself more lifelike through little things like trying to make it possible to daydream. And yet in the end where does it all lead? He is still nothing but the doctor, still stuck in the medical lab unless the episode requires him to leave briefly, and really only minimally changed. That hologram family episode was AMAZING. It was powerful, dramatic, meaningful. Then it all just goes away and is never seen nor heard from again.

Most of the characters had at least a few episodes like that. Episodes that would dramatically alter a character, or allow them to grow as a person only to be forgotten by the next episode. How about the one where neelix and tuvok were in a transporter accident that merged them together? In the end they learned valuable lessons about each others outlook, and we saw a thaw in how they got along. Then the next episode rolled around and its never mentioned again. The closest we got was the paris/belanna pairing. And of course seven of nine.