For conversational posts @elvismercury's posts are some of the best examples imo along with @Undisciplined @siggy47 @Scoresby @supertestnet and many others.
Some of my favorite broadcast/blog-type ones are from @mallardshead. @Natalia @runningbitcoin @darthcoin do great guide-style posts and many others as well. @jimmysong does great bitcoin philosophy ones that are as much conversational as they are essays. @davidw would also do great conversational broadcast-style posts.
It's a spectrum and the difference is sometimes subtle but you know it when you see it. The best across both categories share a kind of care for the reader - helping them learn or getting them up to speed before starting a conversation.
Wait for it... my next long post will be a bomb. I hope you will like it.
reply