Like i said before, Discourse has a minimum requirement of 1GB RAM. Hosting it would be pricey. I also agree that it's on DreamPress category in terms of pricing and specs (VPS) (slightly higher on the pricing side). Troubleshooting is a little bit of pain in the behind, not unless you know your workaround the system. Those are the downside of this software, but overall it is a great one.
I suggest looking into Flarum, if you are looking for a modern yet requires very low resources/hardware to run.
@smaffulli this would be a great addition to DH if there's enough request for it.
Sorry if my post looks like a hijack.