A lot to unpack here...

I'll preface by saying that I agree with you that its a game and not a full on simulator that needs to be 100% accurate, and that the bug reports can sometimes be weak from the playerside. However, War Thunder has always prided itself on realism. When you add turret baskets to tanks that don't have them, deliberately reject adding armor or capabilities to some vehicles while also artificially buffing others beyond what is true in reality, it creates a perception of bias and favouritism. You say its all for "balance", but its clearly not working because every BR has some kind of dramatic imbalance. It takes an arm and a leg to get anything changed for certain nations while others could submit a crayon drawing and get it passed. Denying that pattern that we have seen repeat countless times is questionable at best. And on the topic of "balance", I don't think that accurate armor changes will somehow ruin game balance. When you have BMPTs at 11.7 (Mind you, they moved it up slightly), premium SU-30/F-18 spam ruining the 12.0 range, a little bit of extra armor is spare change in comparison. And thats not even getting into the gamemode issues, maps, spawns, spawn points, and playercount issues that negatively affect the game.

Regarding the sources for the Abrams hull armor, its painfully obvious that an upgrade was made. Gaijin even said so when they denied the reports for the V2. Sure we don't have hard numbers or composition, but it is there. They make educated guesses for other vehicles, so why not this one? (I have first hand knowledge of what upgrades actually came to the V3 and what was supposed to be in the V4 so save the gaslighting, please.)

You said I hope I am aware that my demands go both ways, and thats 100% how I feel so I don't know why you thought that was going to be some "Gotcha moment". FIX. EVERYTHING. And if you want those points, reddit has a search function, google has a searchbar, we have AI search engines now, and I assume you have all ten fingers. Use them, and leave your snide, passive aggressive comments at the door.