buy low sell high
scavenge the network for obscure long-route payments with low liquidity to a big popular node. rebalance out those long routes in to your channel with the big popular node. set your fees to the big popular node slightly higher than the average price you paid to acquire that liquidity. wait. you'll route payments soon from you to the big popular node, and will have earned that profit!
you bought low: low-priced, high quality liquidity, because you did the work to path-find (it's super hard to find these little routes, you gotta be looking all the time!)
you sold high: users of lightning dont have time to find all those obscure low-fee routes. so they just pay through your node, which is always reliable because you keep that channel with the big popular node liquid (and you've even bought off a lot of your competition already)
but be careful, too aggressive with your pathfinding and you can get force-closes or hardware failure (or worse, expelled)
what are your hot tips? (or tell me why i'm wrong and dumb)