Réponse :
1. He created a website againt mistreatment/ bullying.
2. He already helped many parents.
3. He already gave information and advice to a lot of people.
4. A great number of parents got information thanks to his website until now.
5. He works on his website from the day he created it.
6. For years/ It's been years since he helps people who want to stop mistreatment/ parents who want to protect their kids from mistreatment/ realize that there are some signs that there is in fact mistreatment.
7. He gives informations and advice to a great number of people for years.
