Discord has acknowledged that a bug in its AI moderation system mistakenly banned more than 8,000 users over the past two months. The bug caused harmless images—including spreadsheets, chessboards, game textures, and white or gray transparent backgrounds—to be incorrectly flagged as harmful content. The issue had been affecting accounts since May, with an additional 200 users banned over the weekend before the team identified and fixed the problem. In a thread on X, Discord explained that its automated safety system works by matching uploaded content against databases of known harmful material, which can generate false positives. While a human moderator is supposed to review flagged content, a bug caused the system to immediately ban affected accounts. The company stated it is working on better safeguards to prevent this from happening again. Affected users have expressed frustration, with some arguing that permanent account bans based solely on automated detection can have serious consequences.