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You're using YouTube comments as a reasonable sample set? I bet it was only a subset of stupid comments, but idiots are always overrepresented in YouTube comments.
they are a very common position/articulated understanding from knots advocates
Maybe I just ignore stupid comments more than you but I don't think picking the dumbest people on one side of any argument is a wise approach.
About orphaned blocks, you're getting into very much not remedial territory, and I'm not qualified to comment. But it's certainly something reasonable and intelligent and informed people can investigate whether without resorting to ad hominems and staking their relations on conclusions in advance.
the size of op_return is relay policy That's what I said. What was not true?