Why is my account being closed?

[adc]

My PayPal account hasn't been active for three months, but it was very active in 2010 and the most recent payment from a customer was May 2011. Yet I received an email saying that PayPal was closing my account because it hasn't been used in over 3 years. What gives? 

[I3ongwat3r]

Letting your account sit unactive for an extended period of time serves as a security risk for you and paypal?....