Oh i'm sure everyone knows about the opinions of the youtube community at large. Just like something awful, which is fun cus Shmorky (on of their most respected members and their resident animator) is a furry. They all know it but a lot of the major members dont mind since they like him, he's cool.
I love Happy Tree Friends. I have all the DVDs, mostly because of the commentary. In fact, the commentary is so good that on the 3rd DVD, it has commentary on the commentary.
As for the whole family thing, some people take it seriously, others dont, I was weirded out by it when I first saw it, (I mean being someone's pet I can understand, but not a parent) but then I thought, "huh, maybe it's asking about fictional people." I dont really care, I left that bit blank.
The furry community is ridiculously wide ranging, it's a very accepting community, so it's hard to really pin something down and say "This is the epitome of the furry fandom."