>1) What is GUNTHY_API, and why is it needed? (AFAIK, this wasn't required in v3.3.2)
It is a new alpha feature for you to get full stats (trades, SMA, EMA) when starting the bot. Data are provided by gunthy.org which collects data 24/7/365.
Supposed to - it's alpha.
As it's not 100% reliable, maybe don't use it.
>4) Can we get a release where the config.js file isn't jacked up? (v5.0.5.5 has double "EMA1"s in the config... and I think something else, but can't recall off the top of my head)
3.3.2 is the official stable release, please use it.
The other ones are nightly or alpha - config is your problem ;-)
The new stable 5.0.5.x or such is late, supposed to be release on saturday, but it encountered some difficulties apparently.
So please be patient.
Or like me, use 3.3.2 until then.