A user's 7-year-old Discord account was banned without warning for posting a list of Autonomous System Numbers (ASNs), which were mistakenly identified as personal information. The user claims this is not the first issue they've had with Discord, citing a previous incident where their server was threatened with deletion. The user warns others against basing their business on Discord due to the risk of arbitrary moderation. The incident highlights the importance of considering platform risk when building a business.