Not really. The zap you give is based on what you prefer, and how you value the content. Everyone has a different level of experience with bitcoin and Lightning, so if you can only offer 5 or 10 sats, nobody will think less of you for it.
I generally zap in multiples of 21, as 21 is a number that has a lot of meaning in bitcoin. Lately, I’ve been zapping 84 sats for good posts, and I explained my reasons here.
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