These rules do not read meaning — they stop volume abuse and raid-style noise. Thresholds are configurable in /settings.
Message flood
Too many messages from one member in a short window triggers a block. Edits count toward flood limits so someone cannot bypass the cap by editing one message repeatedly.
Duplicate spam
Posting the same or nearly the same text over and over in one channel is treated as spam.
Mass mentions
Messages that ping large numbers of users or roles at once are blocked.
Cross-channel spam
The same link or line pasted across several channels in a short period is flagged as cross-channel spam.
Lorem mode
If lorem mode is on, some spam types are still deleted outright rather than replaced with placeholder text, because a fake paragraph would add more clutter.