

Spam isn’t a binary issue, where it either exists or doesn’t. It could very well be the case that, without requiring a phone number, there’d be far more spam (since it’d be far easier to automatically create new accounts).
Again, do you have a better suggestion for spam & abuse prevention?
And still, aside from that - it doesn’t really make sense to expect Signal to offer SMS integration just because it requires a phone number for spam prevention, when offering this integration would be detrimental towards the mission of Signal (offering secure messages).
Again, spam & abuse prevention. We’ve been over this.
I’m not saying that Signal is a god app worthy of worship, I’m saying it’s detrimental for them to include SMS functionality, since that’s fundamentally insecure. That’s literally why they removed it. Is that so hard to understand?