Ban All Raiders (hate raid security)
Similar to the idea of denying incoming raids - once it is determined that the raid is malicious, the mods/streamer can ban/remove all raid members with one click. (+Are you sure you want to ban all raid members for raidname)
Issues with this: 1. they will just privately join the channel in raid-like fashion.
2. rare chance of getting 2 raids at once, one from a 'friend' and another 'malicious' and banning friendly viewers.
I think it would be fairly simple to narrow raid group information down, so that you can blanket ban users based on what Raid they came from.