Thumbs-up voters, also known as pros, are people who show their approval of something by giving a thumbs-up gesture. This gesture is often used to express agreement, approval, or encouragement. It is a universal sign of positivity and support. Thumbs-up voters are usually seen in public forums such as political rallies, debates, and other events where opinions are expressed. They are also seen in online forums, where they can show their support for a particular opinion or idea.