When do they block you on WhatsApp - briefly?
They may block you on WhatsApp if you repeatedly send unwanted messages or violate their terms of service.
When do they block you on WhatsApp - in detail?
When someone blocks you on WhatsApp, the experience can be confusing and frustrating. The platform does not explicitly notify users when they have been blocked; instead, several indicators suggest that a block has occurred.
Firstly, your messages to the person will remain undelivered with a single checkmark, indicating they haven't reached their destination. Normally, two checkmarks confirm delivery, and two blue checkmarks signify reading. If you only see one checkmark, it might suggest that your contact has blocked you.
Secondly, you won't be able to see the person's last seen or online status in their profile. This information is typically visible, but if they have blocked you, it will not appear. Additionally, any changes made to the person’s profile picture, about section, or status updates will no longer be visible to you.
Thirdly, calls to the contact will fail to connect. Whether you're trying to make a voice or video call, if the person has blocked you, the call won't go through, and you may see error messages indicating that your call did not connect.
Lastly, group chats can provide some clues. If the person who blocked you is part of a group chat, their messages will still be visible to all participants. However, you will not be able to directly message them within the group or view any changes they make to their profile.
It's important to note that WhatsApp itself does not provide a clear-cut way to determine if someone has blocked you without these indirect signals. If you suspect you have been blocked based on these indicators, it might be best to respect the other person’s decision and refrain from further attempts to contact them.