@Jain @sakurajima Your approach is still a bit too aggressive, AntiLinkSpamPolicy works fine for countering this without straight up disallowing new users from federating. And even then hellthreadpolicy can also solve this by limiting how many people can be tagged at a time (which is also a bit aggressive if you're fine with hellthreads, ideally you'd just block new accounts from tagging more than like 5 people in a new thread). There's less aggressive ways to approach this