I don’t know people have been doing it forever so I guess they had reasons to do it when it came to raise funds and gain attention, and Paul seems also concerned by “financing” things so… From what I understand it feels to me that the actual difference between a MASF and an 51% attack is more on the percentage of hashrate you gather from miners being closer of 100 than 50%. At the end of the day you impose you will on others and now censor some legacy txs, or do shit that people using bitcoin don’t want at all. It’s not just about trying to double spend.