I think the highest-leverage addition now would be one small benchmark table in the README/HN post for a tiny VPS (say 1 vCPU / 1 GB RAM): idle RSS, CPU%, disk write rate, and how much history the default 250/150/50 MB tiers actually retain.
That would answer the "why not Netdata?" question much faster, because the differentiator seems to be predictable resource usage rather than just another dashboard.
Anyway, Zabbix still looks like a better solution by any metric.
There is no reason to do this. Set them to sane defaults and set a minimum password length of 12 or 14 chars and stop trying to solve the wrong problem.