

Because everyone else they know is there. If the people they follow and interact with moved to Mastodon or switched messengers to Signal, you’ll see how quickly they will move. It’s hard to convince someone to sign up or install a new app if it’s only you they’ll find there. I was able to switch my family over to Signal and they literally use it only for family group chats, because they don’t know anyone else who uses it. And they were a little easier to convince because they’re family. I won’t be able to convince people with less close ties to me like friends, acquaintances, and neighbors.
I’ve had no issues so far. Response times have been relatively quick, nothing unusual.