The use of 'x' at the end of messages or comments is a common practice in some cultures, particularly in English-speaking countries like the United Kingdom. The 'x' is typically used to symbolize a kiss. It is often seen as a friendly and affectionate gesture to show warmth, love, or care towards the recipient of the message.
The number of 'x's used can vary, and it is not necessarily a strict rule. Some people might use a single 'x', while others might use multiple 'x's, such as 'xx' or 'xxx', depending on the level of intimacy or familiarity with the person they are communicating with.
It's important to note that the use of 'x' at the end of messages or comments is generally more common in informal or casual settings, like texting, instant messaging, social media, or personal emails. In more formal or professional contexts, it's generally not appropriate to use 'x's, as it can be seen as unprofessional or overly familiar.
The practice of using 'x' for a kiss at the end of a message is a cultural convention and can vary between different regions and groups. It's always a good idea to be mindful of cultural differences and norms when communicating online or through messages.