Why are Bangkok Bank and other Thai banks closing accounts opened under the DTV visa?

Many expats, especially those with a DTV visa, have reported their bank accounts being blocked or closed by banks in Thailand, particularly Bangkok Bank. The issue has sparked discussions across various social media platforms, indicating that the closure is not limited to just one bank but is expected to extend to others. Participants in the conversation speculate that this is a regulatory measure driven by concerns over compliance and money laundering, rather than a targeted action against specific nationalities. It's noted that accounts opened under the DTV visa, which is categorized similarly to a tourist visa, are particularly at risk, while those who meet certain criteria—like owning property, having a long-term visa, or being married to a Thai citizen—might retain their bank accounts.