I recently reread the books and remembered a theory I had thought about a while ago, but never publicly posted.
There are three separate occasions, which I can recall from the top of my head, where it is explicitly mentioned, that Kvothe has some kind of protection against arrows (wodden shaft arrows or metal head arrows that is).
- In the myth surrounding Kvothe something is mentioned along the lines of Kvothe can only be hurt by an arrow, if the arrow has special properties.
- When an archer tries to shoot him during the battle in the Eld, Kvothe is saved by a 'gust of wind' - or is he?
- Kvothe is not harmed before, during or after speaking to the Cthae, despite Bast explicitly mentioning them shooting anyone who approaches it with arrows.
All of the above leads me to believe, that Kvothe is imbued with the function of his 'Bloodless' device. I postulate, that when Elodin named the thing 'Bloodless' he imbued Kvothe 'the Bloodless' by fusing the names of the object and the person (intentionally or accidentally).
To a sympathist, the names of blood and fire would be exceptionally useful. Fire to power the art, and blood to allow them to duel another. If a gram protects against the person blood being used against them, and help deal with slippage, it likely has tunes of blood and fire.
Also, Texas Sharpshooter Fallacy. Sometimes patterns mean nothing other than that the pattern happened. This is a story about an ex-hero telling his story, so he wouldn't die before he could tell it. Coincidences and luck do happen to people. Near misses and scrapes are exactly that.
Kvothe lived to tell his story. Dead men don't. There's nothing special about that.
It's a fine theory, but I think it would make more sense that Kvothe has a knack. I doubt that Elodin could imbue Kvothe with the qualities of the Bloodless simply by naming it. To assume Kvothe has had a knack for avoiding arrows would be more realistic.
I think the biggest disproof for this is that the extent that these hunters of people that talk to the cthae go to. That means anyone who wold interact with him would die by theirbarrows afterward... They would realize at one point that they couldnt kill him with arrows and go after anyone he would interact with.
Still that would be a cool feature.