The spammers fuck with peoples money and abuse Bitcoin. Coinjoin are valid transactions and Knots allows them. No one is against storing hashes of up to 80 Bytes in OP_RETURN. 100 000 Bytes is abuse of spammers. Inscriptions are abuse of spammers. BIP444 fixes those things as much as possible or at least limits the abuse on Bitcoin.
OP_RETURN has practical uses too. Coinjoin transactions are valid transactions, but limiting OP_RETURN filters them. Imagine if the whole network imposed the same limit as Knots, then no coinjoin transaction would have been mined. Not all the applications of data transfer are limited to storing images or data.
Apart from OP_RETURN, BIP444 blocks OP_IF, which is used in nostr:nprofile1qyt8wumn8ghj7cnfw33k76twv4ezuum0vd5kzmqpzpmhxue69uhkummnw3ezuamfdejsqgxv43pk4mqurmp2u522mc9cvn3n0vzv6vxvy8zs6ulq46cdf7khz53utk7y . It's a valid use-case which enables inheritance planning on Bitcoin. The choices made in BIP444 are not limited to OP_RETURN and those choices are detrimental. It goes against the principle of "Don't fuck with people's money".
Discussion
Transaction fees automatically take care of this problem. Inscriptions were a problem, but for almost a year. Economic incentives disincentized jpeg enthusiasts. They are not a problem anymore.
Not true. Spam is still huge problem on Bitcoin, now with OP_RETURN blown up is even bigger problem and fees alone are not enough to prevent it.
With the soft fork in place those huge spam bloats that got recently mined won't be even possible.
Spam is not a problem 👇
Spam is huge problem. Its a waste.
Spam is not a problem for Ethereum and all the rest of the shitcoins.
Bitcoin is Freedom Money. Not a spam dump.