This pool is a joke.
They send work packages of extremely low difficulty and don't adapt them to any miner's needs. They even don't allow the user to set difficulty.
Some mining software will outright refuse to send work to this pool as the work packages it requests are following a format that's so outdated they won't even recognize it.
Even if you hack a modern miner to send work to this pool, it will be very inneficient.
Also they're not utilizing coinbase2, instead stuffing a ton of trash in coinbase1. So they're likely rejecting many shares by modern hardware because of this.
Honesstly these things were taken care in mining even before ASIC miners existed. Why aren't they up to date with modern standards?
I can't even come to think that a bitcoin developer like Luke Dashjr is actually so incompetent. He must be blocking new hardware knowingly for some reason. Perhaps in his catholic mind it makes BTC more decentralzed in some odd way...? Who knows.
I wonder if Jack Dorsey funding this project is just an imbecile completely unaware of Luke's past antics though. Like, does Jack even know enough about BTC to understand that sending low dif work without ability for users to modify it and not using cb2 is like building a pool on 2010 code quality? Does such a project really need millions in funding? Luke blocking new hardware from mining in the pool is antithetical to the very notion of hosting a pool. Let alone "decentralizing" mining in any way.
tl;dr don't mine there. Luke is still a crazy mofo and the pool is even worse than eligius.