- Captain America 3: Mid-credits has Bucky getting frozen in Wakanda until they can break his brainwashing, post-credits has Peter Parker telling lies about the events of the movie to Aunt May.
- Status: Barely relevant, just takes Bucky out of the picture for a few movies and confirms that, duh, Spider-Man movies are coming
- Doctor Strange: Mid-credits has Strange agree to help Thor and Loki find Odin, post-credits has Mordo steal Jonathan Pangborn's magic because there are "too many sorcerers."
- Status: Mid-credits is kind of relevant in teasing Thor 3, post-credits is entirely irrelevant as this plotline has not been touched on since
- GotG 2: Jesus Christ there are so many stingers: Kraglin fucks up with Yondu's arrow, Stakar reassembles his team, Ayesha creates Adam Warlock, Peter scolds Groot for having a messy room, and the Watchers get tired of Stan Lee and leave him behind.
- Status: The gags are irrelevant, and the plot-related ones are only kind of relevant to the eventual GotG3
- Spider-Man 1: Mid-credits has Scorpion wanting to team up with Vulture to take out Spider-Man, but he doesn't want to; post-credits is a Cap PSA.
- Status: Irrelevant, the former is never followed up on (especially with Vulture getting Morb'd) and the latter is just a gag
- Thor 3: Mid-credits has the Asgardian refugees headed to Earth only to run into Thanos, post-credits has the Grandmaster trying to take credit for the uprising.
- Status: Mid-credits is kind of relevant in teasing part of Infinity War, post-credits is just a gag
- Black Panther: Mid-credits has T'Challa revealing that we wuz Wakanda 'n sheeit, post-credits has Bucky waking up with his mind control gone.
- Status: Basically irrelevant, there seem to be no evidence that the general tech level has improved at all in future movies, and post-credits just shows Bucky is definitely coming back again
- Avengers: Infinity War: Nick Fury calls Captain Marvel on his pager before getting Thanos'd.
- Status: Laughably irrelevant outside of being a teaser for her movie since she does basically nothing in Endgame
- Ant-Man 2: Mid-credits has Scott be stuck in the Quantum Realm when everyone else gets Thanos'd, post-credits has the giant ant playing drums
- Status: Barely relevant in that it just sets up where Scott was during the timeskip, post-credits is just a gag
- Captain Marvel: Mid-credits has her show up finally, post-credits has the cat vomiting up the Tesseract
- Status: Similarly laughably irrelevant to Infinity War (they seriously wanted to make her the face of the MCU going forward?)
- Avengers: Endgame: No stinger at all, though the sound of Tony forging the original Iron Man suit does play towards the end of the credits
- Status: Well c'mon I can't really count this one
- Spider-Man 2: Mid-credits has J. Jonah Jameson reveal Peter's secret identity, post-credits reveals that Nick Fury and Maria are Skrulls
- Status: Varying, mid-credits does eventually get followed up on, post-credits...uh, did anyone watch Secret Invasion?
Yeah, I definitely see the trend now, where the stingers are generally less and less important to future events in the series. There are a few teasers that get followed up on eventually, but there are also a lot that haven't seen the light of day since (Doctor Strange, Spider-Man 1) or are basically meaningless (Black Panther, everything to do with Captain Marvel).