#lightningnetwork #protip #1:

Never set your fees to zero.

Setting your fee rates to zero invites liquidity snipers and also makes your node's payment failure rate go up. Set fee rates appropriate to the peer you are connected to. If it is something like an exchange, set fee rates to minimum 2000ppm. Make people pay for getting access to high demand destinations. Setting appropriate fee rates is the best way to avoid headaches and time wasting.