Identification questions are like... The cabbage, radishes and shredded carrots that some sushi shops put on the platter before stacking up the meat & rice. They make the plate look nice and full, and they're something to chew on once you've eaten all the meat...
...But no one goes to a sushi restaurant for shredded carrots. I've never heard a group of friends walking out while patting their bellies and saying to one another, "boy howdy, the salmon was ok but those radishes - what a sublime delight!" And going through the stack of menus in my drawer, I cannot find a single one that advertises the quality or quantity of shredded carrots.
We tried this Literature thing once before. It's not as easy as you might think: everyone reads, but fewer people study and fewer still have the combination of encyclopedic knowledge and analytic skill to answer the sorts of questions that are not trivially answered by a Google search - and fewer still know how to ask such questions well. Literature as an collective noun is as common as mud; literature as a discipline, as a pursuit, much less so. The topic for this site is both extremely broad and extremely deep, and there's a very real danger that we won't be able to attract a large enough or diverse enough membership to do it justice...
...which is where ID questions can be useful: something for folks to chew on while they're waiting for the next question about the set of obscure authors to which they've dedicated their study. Like those slivers of carrot, such questions can potentially give answerers something to chew on while they're waiting for the meat...
...But you still gotta have plenty of meat.
The last time we tried this, we ended up with mostly bland vegetables: ID questions, reading lists, etc. Folks enthusiastically defended them, until they realized that they were bored and so was everyone else; the site was shut down because pretty much everyone left. There was no traffic, no new thought-provoking questions or meaty topics... Just an increasingly dusty pile of limp trivia that had been chewed on and spat out.
If this site gets a tiny handful of ID questions, just enough to fill in the gaps between more interesting and useful questions, they'll probably be fine. But if a majority of questions fall into this category, it becomes quite unlikely that the site will survive.
And, let's be honest: if the site takes off, y'all will want to get rid of ID questions anyway simply because when there's plenty of meat they're a distraction, keeping them around doesn't help anyone, and the folks who ask them don't stick around to help anyone else.
But what about all those other site where ID questions are so popular?
You mean SciFi & Fantasy. Yeah, they do ID questions. Here's a graph of the percentage of questions asked each month that are ID questions, for the entire history of SFF:
(This includes deleted questions)
Two things you should note there:
For nearly the first two years of the site's life, they kept the percentage of ID questions below 20, and most months there would've been around 9 non-ID questions for every single ID question - even less during the first month.
They've never had more than 30% ID questions in a given month. Not a single month in the history of the site.
Contrast this with sites like Anime or Movies, where ID questions quickly became the majority of questions being asked on the site, and you can start to understand why SFF can afford to take a more laissez faire approach here; their diet is still mostly meat, while the other sites dealing with these questions are looking over hungrily from their big heaping plates of napa cabbage.
So... what should y'all take away from this?
You don't have to go out of your way to shut down ID questions as soon as they spring up, as long as they're rare and well-written.
But if you're reading this, it's probably a bad idea for you to ask them yourself; if you want to help this site grow, give its members wholesome food to chew on.
And if, in a week or two, you survey the site and see an awful lot of ID questions... You should probably start getting worried about malnutrition.