I didn't know that, but it makes total sense.Thank you for the explanation. This is why I love Stacker News! 

buddylasta

Lightning is fine since a new invoice is generated each payment.

Lightning is indeed fine but for a different reason. Indeed, a new invoice is generated for each payment, but all of them contain your node's address because the payer must find a route to that address. So your node address is reused. But that's fine because knowing a node's address on LN gives no information about who has paid to that node.

bitcoin

Best methods to receive bitcoin donations?

> Lightning is fine since a new invoice is generated each payment.

Lightning is indeed fine but for a different reason. Indeed, a new invoice is generated for each payment, but all of them contain your node's address because the payer must find a route to that address. So your node address is reused. But that's fine because knowing a node's address on LN gives no information about who has paid to that node.