I'm glad there's at least one comic book fan who can see what we non-fans see when we look at these clusterfucks. I hate continuity with a passion. People give all sorts of weird reasons for liking mangas over American comics, but mine is much simpler: to know the entirety of the story of the Fullmetal Alchemist series, I need only read the Fullmetal Alchemist series. To learn the entire history of (say) Spiderman I'd need to read tens of different series, some spanning back to the character creation, and some being actually about some other character entirely. (And even though most of my comic reading is manga if you ask what my favourite series are I'll name Sandman and Transmetropolitan. Which are also a single series. Surprise surprise.)
Frankly I think the coherent universe thing of the two major publishers does more harm than good.
And incidentally I realized games might suffer the same fate. They don't suffer from this kind of... story incest, but suffer from the same thing in gameplay. A new Medal of Honor game expects you to use the grenade throwing you learned in Call of Duty and the cover combat you learned in Halo and the sniping you learned in, um, Sniper Ghost Warrior I guess. That's just as bad as the discovery that the big bad of this intriguing plot in this comic book is, dum dum dum, THIS CHARACTER YOU'VE NEVER SEEN BEFORE BUT THIS FOOTNOTE INDICATES HE WAS BANISHED INTO EARTH-42 OR SOMETHING IN THE ISSUE 78 (JANUARY 1986) OF THE ORIGINAL SERIES!