A long-time bitcoin developer who quit the project in 2016 broke his silence on Thursday, opening up on the state of the project in a lengthy reddit Q&A.

There, Mike Hearn, who has since joined banking consortium startup R3, discussed a range of topics, including the bitcoin cash hard fork and the block size debates that ultimately led developers to part ways over the roadmap for the world's largest cryptocurrency last summer.

Of note were Hearn's remarks here given his own attempts to reshape the bitcoin protocol in 2015 and early 2016 presaged the split. Together with Gavin Andresen, then bitcoin's lead maintainer, Hearn even introduced a software to raise the block size, proposing a hard fork that was voted down. (Hearn later quit the Core team, writing that bitcoin "failed" because of issues with its community.)

However, Hearn now believes bitcoin cash has inherited many of the original project's problems.

He wrote:

Hearn went on to assert his belief that bitcoin cash, like bitcoin in 2014, lacks "formalized governance" and mostly communicates via reddit, where he said users are able to censor unpopular views.

As such, he advised bitcoin cash users to "find a replacement" forum where moderator power would be limited and community views on future upgrades could be properly assessed. In particular, he expressed "alarm" that bitcoin cash was planning to hard fork its chain "with no attempt to measure support."

Still, he also urged the community to "be bold."

"Liberate yourselves from just proceeding along the path Satoshi imagined and be willing to think radical, even heretical thoughts," he concluded.

Mike Hearn via CoinDesk archieves