I think they are trying to mint all the nft they can before the halving.
If they are doing this (minting) NFTs because of halving and they want to do this before the halving, the spam will reduce a lot after the halving. I can hope so because we can not know their reasons to mint a lot of NFTs like this. I doubt that they will stop after halving because in a bull run, there will be a lot of speculation and gamblers in this market.
NFTs make no sense, so "minting them" makes no sense either. It really looks like one guy came up with this, and is now holding the most of them. Or something.
NFTs are useless, make no sense but in a bull market, many people believe in chance of get rich through NFTs. They will realize that they are wrong in a bear market.