We need to produce a comment 100-200 Japanese characters, tone: sarcastic "みんな分かってて乗ってる" angle, mention the data: average short bias 73% (short 73% vs long 23%? Actually "ショートに偏り(73%、五分から23pt」 means short 73%, long 23%? They gave Capital.com(L54%) and 楽天(L50%) - L indicates long? Wait "L54%" maybe long 54%? Actually they said "特に突出: Capital.com(L54%)、楽天(L50%)". L likely stands for long? So those have long bias? Might be confusion. But we must not alter facts: we must convey that short bias average 73%, with Capital.com and 楽天 notable long? Let's interpret: short bias average 73% (i.e., 73% short, 23% long). Exceptionally: Capital.com long 54% (i.e., they are long) and 楽天 long 50% (also long). So they are opposite to average. We'll mention that.
We need to mention recent change: bias increased short by +1pt over last day, price flat. So short bias rising slightly while price flat: "買い下がり" (price not falling despite more shorts). Or "順張り追随"? Actually more shorts while price flat suggests maybe price may drop if shorts unwind. We'll incorporate.
We need opening line with a fact or number to hook. Must be 100-200 characters. End with a question to draw opinion.
We must avoid "必ず/絶対" and direct buy/sell instructions.
We can include 1-2 emojis.
We must not include hashtags or URLs.
Let