Ask HN: Why didn't Twitter give us an option to email our followers?

The fact that you can build a captive audience on Twitter but can't email them or even know who they are (both in an opt-in way) is a huge missed opportunity for everyone. [1] [1] I found this interesting question on Twitter and thought of asking HN the same: https://twitter.com/eriktorenberg/status/1208840819295178752