Recommendation:

Add character limit to messages, filter out every link except wearedevs, message send cooldown, 15 maximum reputation edits (for trusted mods), filter out bad words as well as their bypasses (you can find a whole preset of them online), drink water (10 of 10 doctors recommend it), re-invent calculus, make every message go through an AI and let it filter out some bad words, and keep yourself safe.