Twitter has a place. There's nothing else that gives deep reach into professional niches. I've learned a lot from epidemiology twitter (no pre-existing knowledg

Twitter has a place. There's nothing else that gives deep reach into professional niches. I've learned a lot from epidemiology twitter (no pre-existing knowledge base from me) and from science and applied math twitter that's adjacent to my profession. That knowledge has real value! Like HN, keeping it short has its advantages and I've also learned-by-reading how people say it short and with impact. One has to be super careful about pruning accounts that are predictable, RT too much, or waste time attacking straw men.