Christmas Day 2018 delivered more than just holiday cheer for the cryptocurrency community — it brought a fiery Twitter outburst from Ethereum co-founder Vitalik Buterin that set the crypto Twittersphere ablaze. In a series of tweets on December 25, Buterin took aim at Bitcoin Satoshi’s Vision (BSV), the contentious fork-of-a-fork backed by Craig Wright, labeling it a “pure dumpster fire.”
TL;DR
- Vitalik Buterin called Bitcoin SV a “pure dumpster fire” in a Christmas Day tweetstorm
- He also declared “I don’t believe in proof of work!” — sparking debate across the crypto community
- Despite criticizing PoW, Buterin defended Bitcoin’s core technology as “genuinely cool tech”
- BSV was ranked #9 by market cap at approximately $1.6 billion at the time
- The comments came just weeks before Ethereum’s anticipated Constantinople upgrade
The Christmas Day Tweet That Shook Crypto
On a day when most of the world was unwrapping presents, Buterin was unwrapping his unfiltered opinions on Twitter. The spark came when a discussion about blockchain consensus mechanisms led Buterin to draw a sharp line between legitimate projects and what he saw as outright frauds.
“Yeah no, I have my disagreements with the bitcoin roadmap, PoW, etc but they’re trying to do something that’s genuinely cool tech. BSV is a pure dumpster fire,” Buterin tweeted on December 25, 2018.
The comment was particularly pointed given the ongoing Bitcoin Cash hash war that had recently split the network into Bitcoin Cash (BCH) and Bitcoin SV. BSV, backed by Craig Wright — the Australian entrepreneur who claims to be Satoshi Nakamoto — had become a lightning rod for controversy in the crypto space.
Buterin Doubles Down on Proof-of-Work Skepticism
Buterin didn’t stop at BSV. When Bitcoin maximalist Giacomo Zucco framed the debate around belief systems in crypto, Buterin delivered what would become one of his most quoted statements: “I don’t believe in proof of work!”
The declaration sent shockwaves through the Bitcoin community, but it was consistent with Ethereum’s roadmap. The network was preparing for the Constantinople hard fork, scheduled for January 2019 — a critical stepping stone in Ethereum’s transition from proof-of-work to proof-of-stake consensus.
Christopher Bendiksen, Head of Research at CoinShares, pushed back on Buterin’s PoW skepticism, replying: “Well that’s the whole point of it.” The exchange highlighted a fundamental philosophical divide in the cryptocurrency space that continues to this day.
The Craig Wright History
Buterin’s hostility toward BSV wasn’t new. At the Deconomy conference earlier in 2018, he had famously asked why “this fraud” — referring to Craig Wright — was allowed to speak at the event. During the November 2018 hash war that led to BSV’s creation, Buterin tweeted: “Craig Wright absolutely should have a voice. But so do all of us laughing at his stupidity.”
BSV was trading at a market cap of roughly $1.6 billion at the time of Buterin’s Christmas tweet, making it the ninth-largest cryptocurrency. Its rival Bitcoin Cash sat at approximately $2.9 billion. Both had suffered significant losses during the brutal 2018 bear market that saw Bitcoin itself plunge from nearly $20,000 in December 2017 to around $3,800 by Christmas 2018.
From Cautious Optimist to Crypto’s Conscience
Buterin also took a moment to reflect on his own journey in crypto, revealing that when he entered the space seven years earlier, he had assigned only a 20% probability to cryptocurrency succeeding at all. “I figured it was worth sinking my life into on an expected-value basis,” he wrote.
Despite the devastating bear market of 2018 — which wiped out over 80% of Bitcoin’s value and decimated altcoins — Buterin remained steadfast. “2018 levels of progress would have definitely counted as ‘somewhere,’” he said, suggesting that even amid the price collapse, the underlying technology and ecosystem had advanced meaningfully.
Why This Matters
Buterin’s Christmas Day tweetstorm was more than just holiday drama. It crystallized several key tensions in the crypto space that remain relevant: the ongoing debate between proof-of-work and proof-of-stake, the challenge of distinguishing legitimate blockchain projects from opportunistic forks, and the role of prominent figures in shaping market narratives. With Ethereum’s Constantinople upgrade looming and the crypto market searching for a bottom after a devastating year, Buterin’s words carried outsized weight — a reminder that in crypto, the holidays are never truly quiet.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. Cryptocurrency markets are highly volatile. Always do your own research before making investment decisions.
dumpster fire was generous. BSV was ranked 9 at 1.6 billion market cap and craig wright still could not prove he was satoshi
vitalik saying I dont believe in proof of work on christmas day while defending btc as genuinely cool tech. the nuance was lost on most people
^ the BCH hash war that spawned BSV burned millions in hashrate for nothing. craig lost and kept doubling down
constantinople was weeks away when vitalik dropped this. he was focused on ETH upgrades and still had time to roast BSV on christmas lol
people forget BSV was a fork of a fork. BCH already split from BTC and then wright split it again. pure vanity project