Discord said a bug in its automated moderation system wrongly banned more than 8,000 users over the past two months after harmless images, including spreadsheets, chessboards, game textures, and white or gray transparent backgrounds, were flagged as harmful content.
The company said the issue had affected accounts since May. It said another 200 users were banned over the weekend before the problem was identified and fixed, and that affected accounts were being restored.
In a thread on X, Discord said its safety system matches uploaded content against databases of known harmful material. The company said that process can produce false positives and that a Trust & Safety team member is supposed to review flagged content before action is taken, but a bug caused affected accounts to be banned immediately.
“We’re working on better safeguards so this can’t happen again,” the company wrote.
Users on X and Reddit said they had been permanently suspended after uploading images with square grid patterns. Some users speculated that Discord’s moderation tools had become more sensitive to grid-like images because such patterns have been used to try to disguise NSFW and child exploitation content from automated detection systems.
“Losing a Discord account to something as unfair as this can be extremely devastating and affect users severely, and every day millions of users are affected by false AI bans. This needs to be stopped,” one X user wrote.
Another user wrote: “My account was wrongfully banned from your platform due to a bug in your AI automod detecting my GAME TEXTURES as CSAM. I need my account back as I’m a game director and use Discord for all my communication. I have requested a review of my suspension.”
Discord is not alone in facing complaints tied to automated moderation. Last year, users of Instagram, Facebook Groups, and Tumblr reported unexplained suspensions they believed were linked to automated systems. Meta did not publicly confirm whether artificial intelligence errors were responsible, though its Oversight Board has called for more transparency.