Here are the other options and why I am not using them:
- Email: Don't want to give out my email to someone I just met since it has my fullname and is permanent.
- Whatsapp, Telegram: Requires a phone number.
- Discord: Dear God, no.
- Slack: Read above.
- LinkedIn: Mountains of spam.
All I want is a simple clean (substack like clean) chat interface with mobile apps where I can create an account really fast with a username and is professional looking so I can talk to people regarding slightly more serious topics instead of memes.
Is there any such service?
Just make a new account for this situation. There are myriad free or low-cost email providers. This is a trivially easy solution.
But if email is an option, why not just spend the 10 seconds it takes to open a new gmail/hotmail/yahoo/etc account?
For extra security have two domains one for the fake accounts and the other for your real email
Just make an alias email.
But signal is a good choice. I don't understand the risk of giving out your phone number?
irc?