Best Safe Node hardware

[digipl]

@happybeing

I’m not sure this is the case any more, since the change to none persistent vaults

If not last changes, still ranking.

@dirvine

In essence it allows much smaller fast/off/on nodes to take part in the network easily. As a vault stays on longer it holds data for a while and grows rank (automatically) per session. It makes rank calculation very simple and also makes ‘gaming’ the system significantly harder (it was already very hard).