For us this works really well because you can choose which levels can message and so you can make, "Suspend" a level that is not able to participate.   This makes the sites less vulnerable to disruptors. Previously, If someone was posting messages that were disruptive, you could not delete them.    So to answer your question - Suspend the one member and then the others are not effected.  

Hello!

New update with ability  to block users by membership https://una.io/page/view-post?id=345 

If I understand correctly, it means if an offender belongs to "Metro" Membership level and there are 50 Metro members, will all other 49 innocent members not be blocked? How is this meant to work?

It would be better to create a new user level called 'Suspended' and change the users to that Membership level.

Great