Marvel, DC, THIS is why people aren't reading comic books any more!

[A Black Falcon]

Killing Captain America? It's a publicity stunt, simply. Superheroes (or major supervillains) are almost never actually killed off... I mean, they have long histories. Their fans don't want them killed off! So they "die" and then come back every so often, and get some press in the process. That's just how it works.

I guess you're right that that stuff is probably part of why people don't take comics seriously, but... well, I've never been a big comic-books fan, so I'm not the best one to judge it...