[nickbw]

Ditto.

I've always had the impression that, at least on HN, "weekend project" describes a level of "seriousness" rather than absolute time invested. It lets readers know what kind of scope and polish to expect when they click the link, and what sort of criticism would be helpful. Something like:

Startup > (Real Job) > Side Project > Weekend Project

If I click a weekend project post, I expect to see, e.g., a cute but not necessarily marketable idea, a clever technical hack that might not scale, or a cutting edge design that probably doesn't work in IE8. I expect feedback to focus on those things and not, say, funding advice.

ImageStash (since the article mentioned it ... yay, someone read my post!) took a good three months of weekends. But I thought of it as my Weekend Project because it was just something I started on a whim, and worked on sporadically when I was in the mood to code but burned out on both my Side Project and Real Job.