In SN-102, owners are forcing miners to pay 5t for something they call “dev key”.
“you need to buy a dev key for 5 tao to be able to mine here" is very very similar to "you have to stake x amount of alpha to mine here” which was considered as ponzi in several subnets before
also they claim to have a deal with “taopoolmining-com” to handle this which looks very shady. they are using the “pool” word like in btc/eth pools to gain trust and mis-direct miners, pool concept is something totally different in bittensor.
also, validators are also calling this taopoolmining to get the weights of the miners, so seems like there is centralized scoring as well (not completely sure about this but I can check).
here are some messages to check:
currently they are burning themselves but it will be removed soon and they will continue to operate with this external 5t payment thing.