None of them seem unreasonable. My point was rather than the only thing the angel has going for them is the value of their time--the value of their money is identical across angels. To stress how little of this time is available ("don't send me long emails") to founders off the bat seems, to me, to be an undesirable quality I would want to hide from founders.
I think "don't send me long emails" is shorthand for "communicate clearly and crisply" - lots of people ramble and I can't be bothered to pick out the one important detail.
