It sounds like you're talking about segwit. It's 4MB and it wasn't "snuck in." Anyone who was paying attention knew about it. It can be reversed ... it would just require a hard fork.
21 sats \ 1 reply \ @Ge 2 May 2022
Had no idea looked briefly into it and stuff was too choppy so thought I'd ask the Stacker community! And see what I get ahhh gotcha gotcha thank you for clearing that up!
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No problem!
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