According to @PolynomialFi, many traders convert ETH to USDC, pay swap fees, deposit as margin, then withdraw and swap back to ETH after the trade, incurring unnecessary conversion costs. source: PolynomialFi on X According to @PolynomialFi, the actionable workaround is to post ETH as collateral directly for margin rather than swapping to USDC, which aims to cut redundant swaps and associated fees in perpetual futures workflows. source: PolynomialFi on X

According to @paoloardoino, Forbes has published a reflection on Bitfinex's zero trading fees update, drawing attention to a change in Bitfinex's fee structure relevant to active traders. Source: @paoloardoino on X, Dec 17, 2025. The post does not specify the scope, eligible markets, or timing of the zero-fee update, information traders would need to assess execution costs and venue selection. Source: @paoloardoino on X, Dec 17, 2025.

According to @cz_binance, Japan has taken a great step tied to lowering fees, which he links to stronger economic growth (source: @cz_binance on X, Nov 17, 2025). For traders, lower transaction costs in Japan typically support higher market activity and liquidity by improving execution quality and narrowing spreads across venues serving JPY participants (source: @cz_binance on X, Nov 17, 2025). As the post does not specify the policy or fee type, focus on three checks before repositioning: official notices from Japanese authorities on fee changes, updated schedules from Japan-facing exchanges and payment/on-ramp providers, and shifts in JPY market trading volumes and order-book depth for confirmation of impact (source: @cz_binance on X, Nov 17, 2025).