Except Dan Harmon creates stuff I like while Chevy Chase actively works to destroy it.
  I really don't give a damn about this nonsense if we get an actual good season out of Community coming out of the fan-fiction "Fourth Season".

Of course, the big issue is that Jonas Sr. died right in the middle of this, so he wasn't there to 'control' the arching…

Damn, someone beat me to the punch.  Yeah, that's my guess as well - Monarch almost acts like he's brainwashed in "Hate Floats" when Rusty point-blank asks him what he deal is.

The Season 5 trailer seems to imply that we'll be seeing Rusty's mother…

That, and also explains why he still dislikes Gary - since Gary was responsible for swiping a lot of Hatred's stuff when working for the Monarch.

Every time the Monarch is confronted about it, he evades the answer.  Watching "Hate Floats" again recently, I really wonder if he even knows…  maybe Jonas Sr. decided his son needed an 'starter' archenemy to get him going and brainwashed Malcolm, only to die unexpectedly? 

"Absolute classic kids' movies"?

Surely learning he was a clone and had been killed a number of times should've snapped him right out!
  Just for the "And I thought I told you to go **** yourself" and "May I be excused?", emo dean is more than okay in my book.

First encountered them seeing their music video for "Don't Let's Start" on MTV.

Damn, that was great detective work.  I was trying to figure out who that kid was without any success.

The new Dean had a soldier burst into his kitchen during breakfast, and point a laser guiding at his head - and he simply asked to be excused and walked out.
That was awesome.

The Venture Compound is built on an Apache burial ground, so they are most likely in the American SW. 

Feast of Crows was indeed great for that very reason.  It's grim reading the book, knowing that "winter is coming", and getting the tour of the countryside - seeing the ruined towns, the desolate fields - and the bickering of the 'victors' over an increasingly stale prize.

"Central conflict" - you mean the War of the Five Kings?  The Game of Thrones?  Or the real conflict, the coming of monstrous foes from beyond the Wall?
  None of those conflicts are over.  The idea that "Starks vs. Lannisters" was the primary plot was always a dead end.

Nope - in the Museum episode, we see Team Venture meeting with President Kennedy.

I think it was made clear that Molotov stole one of the decoys, and she left it behind when she fled.

Dean mentions that Talia has been there a month when they're at the kitchen table discussing the events of Halloween.
The home-school prom was whenever it wanted to be (which appears to be the end of September), considering they didn't have to follow a regular schedule… and that the 'prom' was after they got their…

Considering Doc only discovered Dermott's true parentage in the making of "From Ladle to the Grave", it has to be prior to the Halloween episode.

Billy, for being a 'failure', has been shown to be a talented super-surgeon from back in Season One.  So it's about time he gets his due.
 But yeah, Hatred certainly got White's deal down pat.

The thing is, Billy is actually good at being a "Quizboy".  I'm not even sure why he had to cheat on the show, as he regularly won all the "underground" quiz games shortly afterwards.