Gaius has built-in filters that are always active so long as Gaius has the Manage Messages permission. Learn the details about it here.
Chainmail messages such as meme doge meant to spam
Messages meant to scam or phish information, like loggers, ip grabbers etc
Miscellaneous harmful links like screamers and booters
Tommyfoxy2#0001 manages these filters. You can find him on the Gaius Discord server and message him if you have any questions, concerns, or URL/Text to report.