I don't mind the use of the Bible to make points, especially for religious discussions. I've become wary of the use of YouTube videos, because anyone can make those and some even have good production values, but the content is misleading or just plain wrong. Wikipedia and YouTube can be very useful, but they also are easy to use to spread stuff that is wrong or downright insane.
But neither is as bad as the extremely long posts that are used as a reply to any response they receive. You reply to a point using one or two paragraphs, they reply with thousands of words. You make another short reply, they make another novel-length post. I lose interest because you can't keep the points in mind when someone is monopolizing the discussion like that.
I suspect a lot of it is cut-and-paste, and possibly not their own stuff, just clipped from other sites. Which is even worse, because it demands that we spend a lot of time reading and considering something that they didn't put any work into.