@carlyman not sure how/if you can prevent a user on your instance to join another instance room, my kids never tried this anyway... They want snapchat and not that weird thing their dad set up 🙃
@carlyman@palitu on your own instance you only have the accounts and rooms you want. I have zero public rooms on mine. Only if you join a public room elsewhere does it get synced to your instance.
Blocking DM is a client thing I guess? I have had zero unwanted DM so far though...