Miners cant afford that.
but large pools that do not share fees ie antpool can do it.
in fact they can do zero tx blocks slowing the network.
and not collect fees for others pointed to their pool
then point their own hash at viabtc as viabtc shares fees.
so they lose out on antpool blocks but whale on viabtc blocks.
since i don't know too much about mining pools and such maybe it's a dumb question but why would someone mine with antpool if they don't share fees with them ? what's the benefit of mining with antpool in that case? maybe i'm confused about what it means to "share fees" but i'm sure you know.
