It all makes sense now.

Oh you can complain about what you want, how you want and when you want. It just makes you look foolish and to be taken about as seriously as a toddler. Hey your personal reputation you can do with it how you will.

That being said the story aspect of Citadel is actually fairly good because Marvel has been making a killing using that similar set up.  I mean in Guardians of the Galaxy 2

Humor maybe but tongue in cheek developed later as the series got more successful. The ME trilogy how ever has always had humors moments in it so them mixing a tongue in cheek humor in with DLC. Which is only a small part of ME 3 and in deed the entire trilogy actually fits the same set up as Marvel.  You can dislike it how ever you want how ever the fact each new Marvel movie doing this same basic premise of writing makes several hundred million world wide kind of renders your complaint as meaningless.

No more like the injecting of comedy even into a serious movie, tv show, game isn't the death sentence of quality you have given it.  Batman Vs Superman got a lot of complains because they didn't inject comedy into it. Even though they were trying to do a serious movie. And of all the valid criticisms of that movie the lack of knock knock jokes randomly showing up isn't really one of them. But it continues to be one of the most common complains I see online. And is why the new Justice League is going out of the way to inject jokes into the movie as shown in the trailers.

So when BioWare did what Disney/Marvel did a few years later resulting in a multi million dollar global block buster series that will sell our theaters on opening day just because it exists. Can't really say what they did was wrong because it worked. Citadel DLC is generally well received by the player base and the similar concept was taken and expanded in movie form to loving reviews. Or at least loving action of people willing to throw money at the movies.

Citadel is pure fan service, cheesey as all hell right down to the cliched clone antagonist. Is it out of place tone wise absolutely, is it a harbinger of MEA and DAI, that's a stretch of epic proportions that I can't make. Sometimes I play it sometimes I skip it, what I don't do is over think it. Far as ME3 MP, I have a max manifest on xbox and 3/4 maxed on PC and IMHO, mouse and keyboard more than make up for the increased difficulty.

I was trying to work out the areas that most break immersion while playing Citadel DLC. For the most part I can accept it, everyone has at least one ludicrous, almost unbelievable story in their lives and I see the Citadel DLC story as Shepard's crazy story. I'm fine with the Clone (kind of makes sense that they would clone him, at least for fresh organs), but my issues lie with certain elements; such as the Volus Pizza Guy, or using the toothbrush to gain entrance into the ship. I think those could be modded out to create a more immersive experience.

Try the clone Shep boss as a Vanguard on Insanity and get back to me. And most Cat6 go down instantly from a headshot or two.

So it is common for people to ease drop on a conversation that has nothing to do with them. Walk up and take charge of the situation?   And particularly in ME 2 all those ones mentioned are pretty much surprise here is item or here is details and how you should act on this conversation and life changing event I have only heard about 2 minutes of by ease dropping.

If someone random person walked up to you while you were talking with your friend about your sigifigant other and started telling you how you should act. You would look at them like who the fuck are you to tell me what to do.

The only one that was genuinely weird out of that bunch is "Family Matters". And IIRC, Patrick Weekes later explained in an Interview that in retrospect he realized that this is exactly how NOT to do a quest and that he considered that one one of the worst quests and dialogues he's ever written. The others, I found perfectly reasonable as you overhear people in public spaces or the conversation happens to happen, just as you wal into a room. With Dr. Michael for example, Shepard can even make a snarky comment about how she's in trouble every time we walk in.

Also, I agree with Sondergaard. In all of those cases, we overhear just a tiny bit and then start to talk to people exactly because we didn't just stand there and waited to overhear the entire thing (as we do in ME3). That makes it much more organic and natural, while ME3 comes acroos as ... I don't know, a bit creepy?
It's often also the response you get from people when you complete quests in ME3, clearly they had no idea you were about to get involved. Most of them are like "What? Oh, gee thanks, didn't see that coming." It's just a weird way to interact with people.

And yet other people do care about personal space and some random person walking up and giving them unsolicited advice isn't always taken well.

So you over hear a guy talking about his lost genealogy chart and then tell him that you found it and would find nothing wrong with that?

So why the fuck are you complaining about ME 3? Because that is the exact same thing. Someone is complaining about a heating unit for a clutch of eggs and Shepard walks by. Hey I found this heating unit on a mission you think it will help. That is ME 3 in a nut shell on how it handles non story related side quests.