There are different types of user stamps such as:
Verification stamp: This type of stamp is used to verify the account holder's identity. It is usually shown when you have interacted with someone on the platform before.
Favorite stamp: This type of stamp shows that you have liked someone's post or comment on the platform. It is usually shown when someone has liked your post or comment first.
Comment Stamp: This type of stamp shows that you have left a comment on someone's post or comment on the platform.