When you block someone in WhatsApp, do they know - briefly?
When you block someone on WhatsApp, the person will not be notified that they have been blocked. However, there are several indications they might notice, such as being unable to see your last seen or online status, changes in message deliveries, and profile picture visibility.
When you block someone in WhatsApp, do they know - in detail?
When you block someone on WhatsApp, the immediate and most significant effect is that they will no longer be able to see your online status or any changes made to your profile picture. This includes updates to your "About" section and any new profile photo you might upload. Additionally, blocked contacts won't receive any messages you send after the block has been implemented. However, messages sent prior to blocking will still be visible in their chat history.
It is important to note that while WhatsApp does not explicitly notify users when they have been blocked, there are several indirect signs that can hint at this situation. For instance, if a user attempts to send a message to someone who has blocked them, the message will fail to deliver and there won't be any notification indicating that it wasn't sent due to being blocked. Instead, the sender might see only one checkmark (indicating the message was sent but not delivered) instead of the usual two checkmarks (indicating delivery and receipt).
Furthermore, if someone has been blocked, their name won't appear in the contact list, making it difficult for them to reconnect with you. Similarly, your status updates will no longer be visible to them, which could also serve as an indication that something has changed in your communication dynamic.
In summary, while WhatsApp doesn't provide a direct notification about being blocked, the changes in message delivery indicators and the disappearance of profile information can serve as strong hints for the blocked user.