Sorry, but this seems pointless. If you want volunteers from the long-term members of the site, you're probably going to have to convince them that it's not. Course, this is just my opinion, and I'm not one of those people.
The point of this is to brainstorm, what better way to organize what articles to write than to make a timeline, it's organized, simplistic, and allows certain things to come to mind. I don't necessarily think I'll have any issues with having older volunteers assist as much as I would someone who is good at graphics design to make the timeline look good, but that doesn't have to be the first thing done, in fact it could be the very last. I think first things first is certainly what articles to write and include in the timeline.
The point of this is to brainstorm, what better way to organize what articles to write than to make a timeline, it's organized, simplistic, and allows certain things to come to mind.
Sit tight, we're working on some ideas that may satisfy this for you. It make take a bit, but I think it's going to be really cool.
My point is that this wikia is all well and good for rules/faq/basic history (site founding, staff usernames) -- but I'm not sure anyone wants to read about whatever 'past' hubski may have. Again, just my single opinion. EDIT: and certainly nothing wrong with brainstorming in a brainstorming thread.