Another frequent complaint is about constant technobabble. Personally, I found the technobabble engaging, it just seems to help me immerse in the notion of 24th century space exploration. Perhaps I have some bias seeing as I’m a pure + applied science student, but there is just something refreshing about routinely hearing “plasma conduit”, “nutrino emissions”, “power matrix”, etc… instead of free-talk or laymen explanations of scientific phenomena. Moreover, the babble adds authenticity to B’Elanna’s status as an engineer, and gives us the impression that these space travellers are intellectually sophisticated, not just some space-bound renegades or something.
This I would have to disagree with. You argue that the technobabble makes them sound like they know what they're doing, and I would argue that it does the exact opposite and makes it feel unauthentic. The characters don't have to dumb things down for the viewer to understand things; rather, the constant overuse of technobabble makes it seem like the writers (and thus the characters) aren't fully confident in their scientific abilities. The common adage in writing is: show don't tell.
Case in point, Scotty and O'Brien are brilliant engineers, but they very rarely engaged in technobabble (ESPECIALLY Scotty. All he had to say was "She's breakin' apart, cap'n!" Not "Hull breaches are adversely affecting the integrity fields at the sub molecular level!"... and yet they're still regarded as brilliant engineers.
Another case is Riker. He wasn't as knowledgeable as Data or LaForge. But when he came up with a tactic or some techno-wizardry, he never explained it, he just did it. And you fully believed that he was a highly capable officer and more than fitting as Picard's right-hand.
A little technobabble here and there is fine, but as the main form of dialogue? Heck no. Modern day astronauts and physicists do NOT use jargon for every day dialogue lke they do on Trek. Those astronauts and physicists already spend 12+ hours a day with the language, once they relax it's time for them to really let go.
Also, using technobabble as a means of conflict resolution is one big no no. You look at the best episodes that Voyager had to offer, and not one of them offered technobabble as conflict resolution. Sadly, those episodes are very much in the minority.