<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>makomk</author><text>Unless BitPay have changed their policies, the exchange rate is only locked in for 15 minutes. If the transaction doesn&amp;#x27;t get its first confirmation before then, it expires and if the exchange rate goes up even slightly they consider the transaction underpaid. That&amp;#x27;s almost certainly what happened here. They used to be more sensible and only require the transaction to be broadcast to them within the 15 minute window, but they quietly changed it a few years back.</text><parent_chain><item><author>Lazare</author><text>From the second screenshot, the transaction value was 0.003857 BTC. 
 From the guy&amp;#x27;s post, he transferred 0.003853 BTC.  From the first screenshot, BitPay is saying he underpaid by 0.000004 BTC which would seem to be...100% correct?&lt;p&gt;I mean, obviously Bitcoin is a pretty silly way to buy a game on Steam, but this seems to be 100% user error.&lt;p&gt;...well, probably.  There&amp;#x27;s some key info missing here, but this seems highly suggestive:&lt;p&gt;&amp;quot;BitPay emailed me saying I underpaid by 3 cents at the time, and said to refund me. I checked the price of bitcoin 0.003853 btc in usd is around $31 which was a lie on their part.&amp;quot;&lt;p&gt;No, they said he underpaid by 0.000004 BTC.  And the number he was googling is, coincidentally, 0.000004 BTC lower than the transaction value in his screenshot, so...</text></item></parent_chain></comment><story><title>Due to Bitcoin network fees, customer loses $10 trying to buy $25 game on Steam</title><url>https://www.reddit.com/r/CryptoCurrency/comments/7e7wsq/shady_business_of_bitpay_buy_29_game_on_steam/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>alanfalcon</author><text>Bitcoin was a perfectly reasonable way to buy a game on Steam in February last year. Of course my 0.035631 BTC purchase means I could have paid $15 cash and saved the coins and had $287 worth of BTC today. So maybe it wasn’t reasonable.</text><parent_chain><item><author>Lazare</author><text>From the second screenshot, the transaction value was 0.003857 BTC. 
 From the guy&amp;#x27;s post, he transferred 0.003853 BTC.  From the first screenshot, BitPay is saying he underpaid by 0.000004 BTC which would seem to be...100% correct?&lt;p&gt;I mean, obviously Bitcoin is a pretty silly way to buy a game on Steam, but this seems to be 100% user error.&lt;p&gt;...well, probably.  There&amp;#x27;s some key info missing here, but this seems highly suggestive:&lt;p&gt;&amp;quot;BitPay emailed me saying I underpaid by 3 cents at the time, and said to refund me. I checked the price of bitcoin 0.003853 btc in usd is around $31 which was a lie on their part.&amp;quot;&lt;p&gt;No, they said he underpaid by 0.000004 BTC.  And the number he was googling is, coincidentally, 0.000004 BTC lower than the transaction value in his screenshot, so...</text></item></parent_chain></comment><story><title>Due to Bitcoin network fees, customer loses $10 trying to buy $25 game on Steam</title><url>https://www.reddit.com/r/CryptoCurrency/comments/7e7wsq/shady_business_of_bitpay_buy_29_game_on_steam/</url></story>