Here let me attempt to make my inside thoughts clear (didn't want to go into to much detail since this is a Stormligh oriented thread, but hey, it's tangentially related)
The thing that threw me off for a while was the fact that Wit denies his name is Hoid...which is bizarre because he IS Hoid...at least, the character we've come to know as Hoid. However, he speaks of the name as something he's (I don't have WoK on me at the moment but I'll check as soon as I can) stolen?? I believe. Or gotten from some old acquaintance, perhaps even someone dead.
Someone...
I almost wonder if Hoid is the name of an organization of sorts? That's the wrong word for it, but I can't really describe what I mean. An initiative, perhaps, of Worldhopping, though to what end I have no idea. It definitely revolves around storytelling, as that's Hoid's primary occupation through everywhere we see him. He tells stories, and he deals in information. BUT he also trained Sigzil as a worldsinger...taking him on as an apprentice, so that makes me think that there is perhaps something more behind his storytelling.
Also the fact that Sigzil has a bizarre knowledge of Stormlight and things related. Like he knew about it. So it makes me wonder how much Hoid taught him...
Anyways, there's my ramble.