Proponents of gradual credits nerf theory state:
If you play a battle in a specific tank on a certain level of performance (damage, kills etc. along with their circumstances, like tier difference to tank you damage) today, you will receive less credits than playing a battle in the same tank on the same level of performance (doing the same damage, kills, bla bla bla) 2-4 years ago.

Only basic payout is compared (line “Received” in “Detailed Report” tab), not the costs (i.e. it doesn’t matter how much gold you spammed, if any, in the battle).

All of which is completely unrelated to credits nerf conspiracy theory, I hope you guys do realise that.

Löwe makes less credits due to the MM, the removal of battletier 12 made löwe see more tier 10 where it can influence the battle less and roflstop less than before = less income. But the credits you earn per say has not decreased, rather increased the last years.

Also the system is made that you should loose money if grinding and running multiple tanks, that increase the need for prem account, prem tanks and/or grinding lower tiers making sure they are populated.

That is why I am saying that XP is far harder to earn than credits in the long run. And XP is very crucial to train crews and or use for free xp so you dont have to spend endless hours grinding.