If you don’t buy kyc then they won’t even know you bought some
Discussion
If you are running your own node and generating invoices from it to which you are paid, you are doxxing your node's, IP/onion address, liquidity, etc...your node now has a nym and/or a face+locality.
If you are using a custodial lightning service, they will know your IP and potentially your rough location, if you aren't using a VPN.
Onion address will not tell you anything about the actual person though, right? That’s why I don’t suggest runningclearnet nodes, your IP being associated with a node is no bueno
Yes, your onion service address isn't associated with any other information. The problem with tor is latency, hampering payment routing to, from, and the node. You kind of just have to accept that your routing income will be low and your payments might take a few more seconds than a clearnet payment.