This article is a grammatical mess. The first two paragraphs are full of redundancies and little useful information. I would use SlimVirgin’s suggestion for the first paragraph: 

“Ali Sina is the founder of Faith Freedom International, a site set up to help Muslims leave Islam. According to the website, Sina is himself a former Muslim, now a secular humanist of Iranian-Canadian nationality." 

And for the second paragraph I suggest the following: 

The name Ali Sina may be a pseudonym. (This is fact! Nowhere has he said Ali Sina is not his real name. If he has, I never saw it. Has anyone?  I read somewhere he wrote that his mother named him Ali because of some Shiite credence) Sina says because of the death threats he does not wish to be filmed. Some of his opponents claim he hides his real identity because he is not an ex-Muslim. OceanSplash 11 Dec.2005 08:57