AntPool and are witnessed by refusing to confirm SegWit transactions and, as a result, slowing down the adoption of SegWit capable of scaling the network.

Silent war against SegWit

The famous Twitter trader WhalePanda accused AntPool and, affiliated with the world's leading mining equipment manufacturer Bitmain, that they rejected to confirm all SegWit transactions in the bitcoin network.

According to statistics from October 27, AntPool mined four blocks in a row but did not confirm any SegWit transaction. Due to AntPool actions, SegWit transactions accumulated in the queue and filled the mempool of bitcoin. According to bitcoin users, such a behavior of the mining pools is detrimental to themselves. Reddit users mentioned that AntPool and might lose up to $13 million per year due to their refusal to confirm SegWit transactions, although users recognize that these calculations are not accurate and reflect the maximum potential losses.

“The miners that take the transactions make more profit than miners that ignore them for ideological reasons.”

Bitmain vs SegWit

The head and co-founder of Bitmain Jihan Wu is known for his ambiguous attitude towards SegWit. Even at the stage of discussing this update, he was in favor of a hardfork and sharp increase in block size limit, while Bitcoin Core developers stood by a softfork.

In 2017, a bitcoin developer supposed that there was another reason for Bitmain to oppose SegWit activation. Greg Maxwell discovered a vulnerability in the bitcoin code called AsicBoost, which was allegedly used by Bitmain. This vulnerability allowed miners to save 20%-30% of electricity. But this vulnerability was not compatible with SegWit.

Bitmain was blamed for active agitation against the Segregated Witness update, which could put an end to their business advantages.