There is a very simple explanation for this specific case: nobody on hackertalks.com is subscribed to [email protected]!

Most community related activities on Lemmy will only be sent to instances that have at least one subscriber for the community.

it’s not just this community getting hit.

it’s mostly [email protected], [email protected], [email protected] and [email protected], though some of the latest spam also started arriving in [email protected]

Most of these are unfortunately limited to local instance moderation, which means all instances that don’t run these bots don’t benefit from them.

The posts have already been modified in ways that they aren’t as easy to reliably filter anymore, though still possible with fairly low false positive rate.

To add to this, depending on how content is removed, removal may or may not federate properly. on Lemmy.World, we’ve been removing content in a way that reliably federates, so while a lot of this spam does arrive in [email protected] and [email protected], the removals on Lemmy.World should federate to all other instances (0.18.5+).

The other portion of the spam is mostly on Lemmy.ml, in [email protected] and [email protected], and not all of their removals have been done in a way that federates.

they appear to be advertising their “criminal organization”, listing some of the illegal activities they do and where to find them.

posting and commenting.

voting should work: https://lemmy.world/post/11967676