This is not a new phenomenon. It has happened as long as I have been here. There are probably as many reasons for this as there are threads like this.
Some folks come here as a last stab, possibly to condone whatever action they were expecting to do. If it does not follow what they were intending to do, what a bunch of nuts, and they don't return.
Another might need a solution NOW, at 3:30AM, and when it does not come with 15 minutes, they check 3 other places, and either get an answer, or they do not, and give up. And don't come back.
They may indeed put a question on and then are unable to come back for several days.
I don't think we need to make a one-sized-fits-all solution for threads like this. Let them play out. Even if we help one person.... Here's the thing, a lot of our members do not come on every day. There may be great advice, what the OP needs to read from someone who, whoops, waited too long, this one's closed. And yes, even if the OP never comes back, someone else may have that same problem and might read that advice given 2-3 days later. And is helped.
Heidi Ho, Odie
Joy-Joy, Bear Cub, Hepsi-Pepsi
Cujo2, Karma Chameleon
Ramona the Pest, Kojak -- who loves you baby?
Tiny Tinnie, Susie's Uzzi, Kaiah -- The Baby Monster.