hashrate and other sessions we can guess the hardware and power consumption, from reconnects we
can guess some operations on site etc.
In fact I am asking these questions not as MitM between POOL and ASIC
I am interested - what kind of information can obtain POOL_ADMIN about ALL OTHER POOLS
if connect some his own ASICs to concurrent pools.
I want to discuss possible attack vector after segwit activation. Do not know
how to call it. Something like "witness-data-withholding attack". Pushing the mined block
without witness data to pre-segwit network and listening the actions on it from other pools
gives some interesting advantages to dishonest pool admin.