Beta Cluster is having many of the same issues as the rest of the content producing internet in that a variety of content harvesting systems discover it via either organic link following or explicit seeding. In response we are using IP range blocking as a crude shield and thinking about finding ways to reduce toil for maintainers and frustrations for trusted users. The workstream doesn't seem big enough quite yet to warrant a milestone or subproject, but having a longer lived tracking bug like this one to connect things does feel useful.
See also: