It's a bit more complicated than that.
While the weekly reward pool is being mostly burned, a lot of this burning is from rewards that were gained in other weeks (being sent to Ape Mining Club game). Most of the rewards are the 75% burn of posts that were not made on Stemgeeks.net, but there is a good amount coming from wallets that were gained previously.
RE: STEMGeeks burn report - 89.2% burned this week - July 29th 2022