Kushal Babel, a researcher at Category Labs, argued that Bitcoin's network security should be evaluated based on transaction fee revenue expressed in US dollars rather than BTC, emphasizing that USD-based assessments provide a more accurate picture of the economic incentives for miners

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Critics argue fee revenue should be viewed in USD, not BTC, and say the problem lies in Bitcoin’s drift from Satoshi’s “digital cash” vision.
However, Category Labs researcher Kushal Babel disagreed with the argument, noting that denominating fees in BTC to say it is at an all-time low is wrong. According to him, the whole argument might change if BTC fees are denominated in US Dollars.