That is the same as I told. (with clickbait title)

It means if you're selling something and also you're a user of Thai exchange such as Bitkub, then you send your deposit address to your customer for them to deposit bitcoin into your Bitkub account as the way to pay for goods you sell. If Bitkub know what you're doing, they have duty according to this law to warn you to stop using their platform in this way and may be cease your account if you insist on keep doing this. But there will not have any other law enforcement or punishment on you.

But if Bitkub know what you're doing and do noting with it, if SEC know then Bitkub will be punish for their ignorance.

Anyway by using other wallet such as Wallet of Satoshi, Phoenix or even using on-chain transaction paying for something. These situation above will not be happen.