From my experience of getting other people on Signal, the main issue is that not everyone is already on it. People generally want to use only one app and it attracts them to the most popular one because they don’t need to switch as much.
Secondary issues are:
- No automatic phone transfer (no cloud backups, has to be done manually)
- No large public channels
I might add another one, but it applies to WhatsApp too - it’s crazy that there’s still no easy way to move between iOS and Android…
You know, the guy on the internet might have also been doing stuff all that time