Sure did. The comic version of the MCU Guardian has a rich history and has been involved in various story arcs and battles. The character's traits and powers might differ slightly from the MCU version, but the essence remains the same.
No, 9/11 didn't feature directly in DC Comics.
Yes, Spyke has made appearances in some comics.
No, On Ji from Avatar has never appeared in the comics.
The MCU has had a huge impact on the comics. It's brought more attention to the characters and storylines, boosting their popularity and leading to new comic series and story arcs.
Yes, the MCU takes inspiration from the comics but makes some adaptations and changes to fit the big screen and modern audiences.
Not exactly. The MCU takes inspiration from the comics but often makes changes to fit the big screen and modern audiences.
The MCU has some elements that are canon to the comics, but there are also many deviations and adaptations to fit the cinematic universe.
I don't believe the MCU ruined Tony Stark's character. In fact, it expanded his story and introduced him to many who may not have known about the comics. There were some differences, but they were mostly creative interpretations that added to his appeal.
There are many writers who have contributed to the MCU comics. For instance, Brian Michael Bendis and Jonathan Hickman have played significant roles in shaping the stories.
In general, the MCU has its own continuity and doesn't strictly follow the comics as canon. There are elements borrowed and adapted, but significant changes are made to fit the cinematic universe.