The reason He's here on Udemy is to provide high quality courses which can be useful and practical for students, He's been creating courses which have turned students into web developers and newbies into entrepreneurs. He tries to create courses for students which can change their life.
He has thousands of daily visitors on his websites, thousands of subscribers on YouTube and millions of students around the world, you can visit his websites to check his online reputation.
Do join his courses on Udemy, He'll always be around you for help and support because He knows the reason you want to join a course. He interacts with students in a real time world.