Maybe there should be implemented a limit of feedbacks / trust / flags in a given time (if it doesn't exist already)? Similar to the bump limit (https://bitcointalk.org/index.php?topic=5183553.0).
Practically, this would mean that an user isn't allowed to give multiple feedbacks in the same day, for example. Or, another suggestion, in case that several reputable members here (maybe those from trusted list) vote against someone's flag (example: 50 vote to oppose against what a spammer sustains about someone via feedback / flag etc), this user should have a given amount of time until he is able to post again feedbacks / flags.

Besides, maybe it could be implemented a system where if a big number of reputable members (DT list, for example) vote for banning / deleting someone's account, this action to be performed automatically, without having to involve mods / administrators / theymos.

Does it make sense what I'm saying here?