No idea how you use laptops, but I've never needed more than 1TB on mine, let alone more than 256gb and I still have more than 50% free most of the time.
No one is ever going to see this post, but... no, it isn't. All sites experience downtime occasionally. Unless it is for some interesting technical reason or it is extended beyond a couple of hours, there is nothing newsworthy about it whatsoever. There is certainly nothing that gratifies one's intellectual curiosity about it.
I know re-submissions are a thorny subject for some people. TBH, we've only posted a few things on line so far, and I'm still getting a feel for what's best in terms of posting to HN, Reddit, etc. I am of course biased, but I think a good proportion of the readers of HN will be interested in our stuff, so I don't feel too bad about resubmitting a few times if it doesn't get picked up.