Learning my Marvel comics history from ... Quora?

Quora is one of my favorite websites. I rarely answer questions and don't believe I have ever asked one, but I've loved so many of the odd questions I've seen answered there by those who know.My two favorites are the one where someone asked if it was legal to launch a rocket into space from your backyard. A NASA flight controller answered explaining all the different aspects that one would need waivers for in order to do it. The other question was someone asking how much it cost AOL to distribute all those CDs back in the 1990s in its direct marketing efforts. There are many excellent answers on it, including from former CEO Steve Case and former CMO Jan Brandt. The most interesting tidbit in that one was that when AOL 4.0 launched in 1998, the company completely dominated worldwide CD production for weeks. No other CDs at all were manufactured during that time. Wow.Anyway, that's not my current obsession on Quora.I wasn't really a superhero comics geek growing up. My geekery was heavily in the science fiction realm - Battlestar Galactica, Buck Rogers, any movie that had something to do with outer space. I devoured novels by Arthur C. Clarke, Ray Bradbury, and other legends. I've become a fan of the superhero stories in recent years - yes, in part thanks to the X-Men and Avengers movies - and have caught up on some in anthologies we've gotten for our boys. I've boned up a lot on superhero history from the Marvel Encyclopedia we have in our house, too. We used to read entries of various superheroes as bedtime stories for the little guys.But there are a lot of questions that can't easily be answered just by looking something up in the encyclopedia, and that's where Quora excels.Just the other day, I read about how Hulk would live on even if Bruce Banner died - if Banner could even die, as his cells should regenerate due to the Hulk inside him. It's a question that never would have occurred to me, but I found fascinating.The main answer to the question of which Marvel superheroes had never been defeated (written by someone who translates Marvel comics in Brazil) was long and thoughtful, discussing how flawed even the most powerful of superheroes in the Marvel universe are. Defeat and hardship is hardwired into the Marvel ethos and nothing comes easy to the superheroes there. Perhaps a reason I do prefer Marvel to DC. (Yes, One-Above-All was mentioned in several answers, though I'd argue that he is perhaps not a superhero, but rather a god? Though given that Thor is sort of a god, but is a superhero, I suppose that's a distinction without purpose.)People answering "Who is the most powerful Avenger in the Marvel universe?" had some excellent discussions about the breadth of Doctor Strange and Scarlet Witch's powers, but the answer of Sentry was very interesting to me, as he was a superhero I wasn't familiar with.Similarly, "Who is the most useless Marvel character?" led me down a rabbit hole and I'm still learning new, utterly useless characters I had no idea existed - nor why they did. One person even answered that Hawkeye was, arguing that sure, he's great with a bow and arrow, but with no superpowers, why is he even an Avenger? I will agree to disagree, though I have wondered how Hawkeye ended up there.As for "Who can defeat Thanos?", well, several good distinctions were made between the Marvel Universe and the Marvel Cinematic Universe, but I love any question where an answer can start with Squirrel Girl.I try not to go and just dive into random Quora questions about superheroes, because then I'll just get sucked into a rabbit hole and never come out. Fortunately, I get them often enough in my daily newsletter that I don't have to choose randomly.