Indeed, I received a fair amount of pushback on this message board back in 2018-2019 when I said that I refused to give twitter my cell phone number. “What’s the big deal?”, they said. This thread provides one reply. This article provides another.
For those needing a throwaway cell phone number, you can score one from Google, provided you give them your existing cell number. Once you do that, you can delete your real cell number from google’s records. Now you have an extra voice number that you can send and receive texts from.