I'd go farther - it doesn't even have to include an obligatory arc reference. The number of users here is small enough that the usual rules are less important. Especially if it's occasional (the front page is still mostly arc) and from someone we recognize, I think the handful of people here prob won't mind (or they'll respond to this if they do ;)
I'm finding out that creating a new destination site is crazy hard to do. The internet is mature; all of us have our habits, and it takes a lot to change. Just go where your audience is. If they don't like what you say they'll let you know, and you can then iterate.
