this is less an iceberg and more just moldy stale water atp, but this thinking back reminded me how much hype and speculation surrounded valve recognizing competitive tf2 and adding comp matchmaking to the game
there were posts after posts in the early 2010s about talks with valve, direct feedback from devs about how they hate sixes and think the community should innovate or some shit, all culminating in the indirect announcement that they were working on in-game mm, which would eventually become comp mode with meet your match
https://www.teamfortress.tv/8952/how-to-get-to-in-game-comp-lobbies
https://www.teamfortress.tv/24792/valve-and-competitive-tf2
https://www.teamfortress.tv/34363/valve-visit
https://www.teamfortress.tv/36886/the-state-of-tf2-post-valve-meetings
and in the end, it all meant nothing. updates to iron out the many many issues meat your match incurred did not materialize. there was no renewed interest in competitive, there was no real use for the in-game competitive matchmaking, and after jungle inferno, there was nothing
https://i.imgur.com/zsOqggN.png
(it looks like he actually unlisted this video (for good reason), but it's poignant and still hurts)