TRON should be the third to support USDT transfers and at that time it was the cheapest. The first was Omni's BTC format USDT, then ETH format USDT, but both were very expensive. TRON's USDT was the third, if I remember correctly, at that time it was just 1 U of Gas, and almost all exchanges using USDT supported it.

Then around 2019 to 2020, a bunch of altcoins emerged crazily. At that time, many altcoins and gambling coins were on EOS, and TRON's mechanism is very similar to EOS, which led to many "local特色" projects being on TRON. At that time, the TRON ecosystem was referred to as the Las Vegas of blockchain.

Moreover, gambling exists both online and offline, which led many big players in Southeast Asia to start using TRON, and then gradually expanded to Asia, Africa, and Latin America, forming the current situation. The success of TRON USDT is mainly attributed to mobile wallets and low fees. At that time, local特色 could support USDT on TRON but not on ETH, mainly because it was cheaper.

For many people, it is a habit, and indeed BNBChain is cheaper now. But habits are hard to change.

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