I'm honestly not too upset or worried about when Phil started dating Panda. I mean, it's funny to laugh at, but it's pretty clear she wasn't being groomed from childhood. Somehow, this life is the one she picked for herself, and Phils influence over it is pretty insignificant. If Phil had started cybering her at age 10, met her at age 14 and moved her out with him at age 16 I'd have a lot more heckles raised. But as it stands I don't see a big moral problem with a twenty something hooking up with a late teen, especially if they were online and both knew what they were getting into.
Phil's pretty disgusting, his relationship with Panda is offputting, and the sum of his entire life is something I wouldn't trade a week's vacation for. But I'm not going to grab the pitchfork because he fucked a seventeen year old. There are plenty of legitimate reasons to hate Phil.