I care little about such things. I believe that statements are irrelevant from who makes them. It is fallacy territory, if you give credit to an argument because of who made it. Same for discredit.
That's why using words wrong and using non arguments bothers me. I like reason and reasoning. Using words wrong makes reasoning non sensical. If handal wants to talk about how vile incest is, ok. But handal seems to think that incest means to abuse your own kids (or parents if you look at what happened in the Bible), while the rest of the world thinks that brother and sister getting it on, is incest. Also cousins marrying is incest too and rather common. One cannot have a discussion, if people talk about different things but use the same word.
But at this point, handal is just trolling and venting. Or using yet another word wrong. Did you look at that link where supposedly christian fanatics would practice incest? It is an problematic event for other reasons, neatly outlined in the article, but incest is not among those problems. It is a fathers and daughters dance event and comes from those virginity pledging crazes.