Samson Mow, CEO of JAN3, claimed that the removal of the 80-byte OP_RETURN data limit in Bitcoin Core 30 eliminates critical technical safeguards, which he believes will open the door to network spam and ultimately compromise node decentralization by raising operational costs and complexity

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Following the statement, reactions poured in. Samson Mow, CEO of JAN3, called the developers’ tone hollow and said recent changes have “opened the floodgates” for spam. He argued that removing technical barriers encourages unwanted data.