No matter what number they chose, some would still ask why that number of confirmations was chosen.
Normally we can say that:
Zero Confirmations: unsecure transaction because of RBF Possibility.
One confirmation: a secure transaction, but reorganizations and double-spending can occur.
3 confirmations: Very secure transaction, no reorganization can happen but double-spending can happen.
6 confirmations: A very very secure and irreversible transaction.
Some services accept zero confirmation transactions if they do not contain a RBF FLAG.
So that I was surprised by number 2.
@UniJoin.io I've tried the mixing service, it's smooth and works well, any plans to release Electrum plugin? As far as I know there is no implementation of Coinjoin as an Electrum plugin and after everything that happened with Wasabi Wallet, providing this option will attract more traffic to your site.