1. Your decisions don't matter at all. Nothing you do makes a difference.
2. The galactic readiness bar only effects the condition of earth you see in the background of the final cutscene.
3. The mass relays blowing up means that galactic society is screwed, forever. That massive fleet you gathered? They're all going to starve to death, because the ruined earth can't sustain the entire Quarian migrant fleet (if brought) Turians, Krogans, Salarians and whoever else. Not enough resources
4. The endings are identical. More or less. If you choose control or synthesis, the same thing happens, except with blue light for control and green for synthesis. Choosing 'destroy' makes the Reapers fall over dead instead of flying away, but otherwise it plays out the same way.
5. The endings being the same means Bioware lied, as they promised us SIXTEEN unique endings, and explicitly said "This won't be like another game where you can say to someone whether you chose ending A, B or C."
6. People will die as a result of the Normandy being marooned on that random planet. There's a 50/50 chance that the plant and animal life on that planet will be Dextro-Protein. If so, Garrus and Tali will be the only ones who can eat it. And they probably can't decontaminate the food, so Tali will starve or die of infection. If the plant life turns out to be Levo-Protein, Tali and Garrus starve to death. And this is indisputable, since the Normandy is stuck there outside of the Sol system, where nobody can rescue them.
1. Why was Joker flying the Normandy away from the battle?
2. How did squadmates who were on earth with you get back onto the Normandy?
3. How did Anderson reach the control panel before you did? Major Coates said "Our entire force was decimated". And when you teleport up there, Anderson somehow arrives first, despite there being only ONE path to get there.
4. Why did Admiral Hackett wait until TIM was dead to contact you? How did he even know you were alive? If so, why didn't he contact you sooner?
5. In the Arrival DLC, when a Mass Relay explodes, it takes out a whole star system. Doesn't this mean the galaxy should be supernova'd?
Overall, it's an unsatisfying conclusion. Best case scenario? EVERYONE DIES!! All your efforts are for naught. If anything, this is worse than letting the Reapers win. At least if the Reapers win, life will carry on in the next cycle. But with the Mass Relays gone, that's no longer possible. Everyone will just stay isolated and slowly wither away.
Well that's pretty complete and I agree with most of it. I guess you've seen this video [link] so it would just be in Shepard's mind, which would "explain" some incoherences, but wouldn't explain a lot of other things :/ We'll see what the new ending DLC will bring to us.
The indoctrination theory? Yeah, I totally support that one. If it turns out to be true, then Bioware would be the greatest plot twist writers IN HISTORY. But it probably isn't, because of what really happened. One of the writers blooged a while back that Casey Hudson "locked them out" of the ending. Hudson and one other lead writer handled it completely. The other writers were forbidden from seeing it and giving feedback. By the time they saw it, the dialogue had all been recorded and the CGI endings were in the rendering stages.
You'd think they'd have learned from that godawful novel ME: Deception that if you let one writer go off on his own when he has no fucking clue what he's doing and nobody to keep an eye on him, bad things will happen!
Just... brace yourself for a LOT of continuity errors. Even basic material makes no sense here. And what goes on is ridiculous. Here is a spoiler-free example of one paragraph and how many things it gets wrong. (I'm paraphrasing from memory)
"Dark Star is a night club on the 28th floor of a skyscraper, with a window view overlooking the presidium. It is a quiet establishment, with gambling machines, not the kind of place you'd expect to find a blue-collar-joe."
Here is why that is bullshit.
1. The club is on the 28th level of Zakera ward, not in a skyscraper.
2. There are no windows in the club.
3. The gambling machines were in Flux in ME1, not Dark Star
4. It is not quiet. There is loud dance music playing all the while you are there.
5. The only NPC's you can interact with there are a Turian Bartender and Groundskeeper. How much more 'blue collar' can you get?
One paragraph, 5 errors that could easily have been fixed if he'd played the damm game. This is the tip of the iceberg.