Prevent Banned Users from Joining Raids
Block users banned from a channel from joining a raid from the channel the users are banned from to the raided channel, and also not notifying the banned users the name of the raid target channel (specifically the notification appearing on the top of the chat when the raid is about to happen).
As with a raid, the raiding streamer will be in the chat of the raided channel, and the raiding and raided channels usually have related communities, malicious users can use this opportunity to continue harassing the streamer or spreading damage to related communities, despite being banned from the previous channel. Therefore, allowing banned users joining raids exposes both the raiding and raided streamer to the risk of being harassed by previously known and banned malicious users.
I have recently witnessed an account maliciously disrupting the chat with inappropriate ASCII spam, and after the account was banned from the channel, the stream ends with a raid, and the same account attacked the raided channel with the exact same method, so this is a happening issue and actions should be taken against it.

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Godchilla84 commented
When theres someone causing trouble in my Chat/Stream, i dont want to send that Troll to a friend streamer via Raid.
How can I send all my viewers to another channel, Except that one person?
Its not about being raided, its about raiding others...
Can I do anything there? -
TheTacoTim commented
Change how bans work. Raids are sent to support other creators, however if someone is banned in my chat, Why would I send them to someone else when they clearly broke the rules in mine? I want to show love to others, and not bring over toxic people who might still be lurking while banned
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PeasSMB commented
I cannot find this in Support, but for some reason when someone is banned from a Twitch chat, they can still follow a streamer's raid. This happened to me earlier, and I think this can easily be mitigated if the banned person cannot have access to the channel participation.