Ummah.com contributes to many Muslims leaving Islam.
I remember when you went back on that forum after a long-time and Abu M and the dolts laughed at you and insulted you; you were nothing but polite, it's just because you don't believe in there religion any more, I suppose they are scared of you, so much so that they don't believe you ever were a Muslim. You may not remember that happening but I do.
There are some wicked people on that forum, I do believe that is what they are and it's not because of the religion itself, maybe I'm a bit naive, I don't know.
There are so many people who left Islam on there, but the ever-changing members of the forum always doubt the person was a Muslim, someone once accused me of getting paid by someone to write the things about Islam to create doubts among the believers, mad conspiracy theorists, I wish I got paid to post my thoughts.