Like many here, I quite appreciate well-written description. This is why so much of writing a good book is in the execution. Some people can info-dump. Some do, but probably shouldn't. There's an amazing inverse correlation between those who think they can and those who can actually do it.
A lot of info-dumping depends on how it's defined, too. As an academic term for any passage that conveys info about a world in SF, they're fine. In a writing sense, it refers to long passages of expositional worldbuilding.
One of my creations requires a bit of introduction, and as creative as I think I'm being, its really proving difficult to avoid that block of text.
Then you have to find a way to make that wall of text interesting. Voice, diction, pacing, and
paragraphing are all ways to achieve it with writing craft. (Be careful of subordinate paragraphs--make sure each introduces and wraps up a single idea.) Characters, movement, present action, and clear stakes are all storytelling techniques to mitigate info-dumps. That's why people say to weave the info into existing scenes. Don't just drop info. It's not the
info part of the word that's a problem--it's the
dump. Make it part of some event. If it's not part of some event, ask yourself honestly if it's relevant to the story or if it's documentation. Nobody reads documentation. The programmers I write documentation for don't even read the documentation. There is no disrespect in a reader not reading something. It means writer done goofed, for that reader anyway.
An awful lot of new writers say their story "requires" an info-dump. I have almost never seen this to be the case. I write highly abstract secondary world fantasy with animal characters, highly political plots, and bizarre magic systems. I've yet to find an info-dump of mine I couldn't write into a scene better. If your reader is likely to ask what something is, this is the time to provide an answer--not before.
After you have their attention and interest in that subject. Anything else is effectively a spoiler, setting up what's going to happen so the reader will understand. Of course part of this is fashion, but set-up like that breaks tension and spoils immersion. It's sloppy writing, period. A well-written info-dump engages me first, then moves the
story forward by providing information.
This might seem a tad moot, I dont know, but on TV shows I've liked, or I thought were done well, many had their own info-dumps, so to speak. That first episode 10-20 minute dialogue that introduces a world or characters. You see it in some movies as well, though thats rarer as today it seems far more important to enthrall the viewer with action or drama as quick as possible.
Visual media are different. Mostly, take note of what you're seeing during those exposition scenes. Done well (and there are some that aren't), there is action or at least story movement throughout. Books do not have the luxury of some gorgeous actor showing up to steal the camera while someone like Michael Caine explains what's going on.
Even in film/TV, info-dumps are dangerous. Ask any screenwriter about exposition. Actually, better idea: ask any director about screenwriters who use too much exposition.