I don't read comics because I am sick of characters dying but later on they decided on man we screwed up let's make it a Skrull that died instead and have the original come back from Skrull prison or just plain old let's cure death.

In comics death has absolutely no meaning whatsoever. Why should I care if my favorite character was murdered he/she will be back eventually, and within two issues of the return everything will be back to like it never happened.

If a character dies they should remain dead period. Either replace with someone new with the same code name or new code name.