I am not sure that's exactly how the "shadow bans" work on Amethyst. First, they are optional. You just have to go into the Security Filters and turn them off if you don't want them. It looks like some are turned on by default, but that is a decision based on what the devs think will give new users the best experience, and they can change it at any time. The first of these filters hides posts from strangers (not followers or those in any of your custom follow lists) who have posted exactly the same note 5 or more times, and it is on by default. This isn't talking about using the repost button 5 or more times, though I would consider that spammy as well, but actually posting a duplicate note multiple times. Typically this is done by people trying to advertise some service they want you to sign up for. If you want to have a bunch of identical posts in your feed, though, you can turn that filter off. If you generally want to keep the spam filter on, but someone whose posts you want to see has been added in the spammer list, you can manually remove them from the spammer list to see their posts again. The second filter hides posts within community groups that violate the community rules, as defined by what the community published in a NIP-9B rules document. This one is actually off by default, so these posts will be visible unless you manually opt to have them hidden. If the community in question has not posted any rules document, then no posts will be hidden even when this filter is turned on. The next filter shows a warning in the place of posts or profiles that have REPORTS (kind 1984)—not just mutes (kind 10000 list)—from a user-definable number of the user's follows. This filter is on by default and the default threshold of reports needed for the posts or profile of a particular npub to be replaced by a warning prompt is 5. Users can turn this filter off entirely, or increase/decrease the threshold of reports required. The last filter hides posts that exceed a certain number of hashtags. This filter is always on and cannot be turned off, but the default maximum number of hashtags (8) can be increased or decreased based on the user's preference. Posts with a large number of hashtags are typically spammy, adding popular tags to their posts because they know it will get their post in front of anyone who follows those tags, and not because their post actually has anything to do with the topic the hashtag represents. None of these filters hide posts from npubs that have been muted by 4 or more of your follows as you characterized above. Can you provide a link to the thread where you discussed this with @Vitor Pamplona?