How about only a silent mute but no block? Then you can protect yourself if you don't want to see it, but to use it as a weapon, you have to convince them you'v

How about only a silent mute but no block? Then you can protect yourself if you don't want to see it, but to use it as a weapon, you have to convince them you've really muted them - and they might not believe you, so it's weaker. Just like old Usenet and mailing list's *PLONK* message.