I follow Carsten's logic and would probably support it if it becomes the standard. I have actually already changed the default values in the lnd.conf file so that indeed, I avoid having a channel drained before I've had time to adjust the fees by hand.

I don't think a static number for all nodes makes sense. I use dynamic fees to make sure all channels can work at their best (and, let's be honest, maximize profitability). With fixed fees, some channels would not route at all or would get depleted in no time.

ZFR does not do any active rebalancing of his channels if I remember correctly. So there is no reason for him to monitor 1ppm channels. He just lets things flow as rebalancing would incur a cost that he cannot recoup by routing fees.