Spiderpool and
F2Pool also joined.
From a pool's perspective, I think they have to choose between missing out on transactions because they reject the fee, or missing out on higher fees if users start switching to lower fees.
They have more to lose if they reject transactions paying less than 1 sat/vb. My thought is that if pool X starts accepting those, then miners mining at that pool get more money when the mempool is empty. Miners mining at other pools will eventually realize that they make less than those mining at pool X when the network is not congested. Therefore, it creates an incentive to switching mining to the sub-1-sat pool.
Right now, the first sub-1-sat mempool block, pays 0.008 BTC. That's 0.25% of the block subsidy. And remember than in 4 years, it will be 0.5%, then 1%, then 2%, etc... Miners need to be very cautious at some point, and cannot afford the luxury of ignoring possible income.
Bitcoin game theory rocks.
