Similar to RAIDs there should be a section in the Creator Dashboard that allows granular access to control Shoutouts & what gets shown where (ie Chat message vs Activity Feed message vs both).

Currently with the new rollout you are able to;
1) Shoutout the same person every minute or so which causes their Activity Feed to be SPAMmed with notifications (usually of different view count numbers)
2) It is possible to Shoutout the same channel at the same time by multiple accounts which can lead to Bot controlled Hate Shoutouts
3) Resulting Mass Follows to an unsuspecting channel could look like a Mass Bot Follow scam in order to overcome Follower-Only mode that may also be active on the channel. There should be a Creator/Mod only view chat message that appears in the chat which says "X Person has Shouted you out in their chat"

It's a fine tool but it has mass potential for misuse like Raids feature had.