[2021] Odds stacked against the Player after taking a Wager ?

It's made up theory made by people who search for justification on their poor skills or bad luck.

Standard conspiracy theory.

You can have bad battle with or without wager. Confirmation bias. You just search harder for some explanation when you got booster on.

This ^^

Since years we have wiki warthunder where you have info on how current MM works.

Players skill is not checked for random battles MM. ELO rating is valid for special tournaments etc (where we always announce such info).

You are taking some 7 years old post which is outdated and pretend that it's some kind of proof for made up theories.

What next? You will dig old Q&A where we state we have no plans to implement nuclear weapon?

War Thunder is on market +9 years. Using old, outdated posts to prove anything is really strange. Especially in topic, where random user is asking question and should get straight answer to git gut, and not some silly theories that will throw him in conspiracy mindset that will lock him from getting better in game.