He's not the only one here on the forum. I like to see other people's setups. Especially the ones that are a little less conventional, or there's room for helpful input from other members. I think it gives us all a broader, more rounded idea of what works, what doesn't, what might work, and the reasons behind each.
William can come across a little rough, but he's very knowledgeable and generally seems to try and be helpful in some way. If you don't like a particular thing he or anyone else suggests, you're free to ignore it. I've done that a few times, myself