Is it better to add WeChat to others' QR code or scan others?

Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable. Might as well have someone else scan yours. If you are a stranger, it is no problem for him to scan the QR code of WeChat, but if he is a person with ulterior motives, you may be hit by a Trojan horse, which will be miserable.