Writing unofficially on behalf of Freiexchange, it would have been nice if you contacted exchange admin via email or Telegram channel to allow us an opportunity to verify and correct any errors prior to

Well, yes, the idea was that Freicoin would be part of a real economy.

The appropriate historical reference is not to shipping but rather to Silio Gisell, Worgle, and FDR's StampScript. Also, the difficulty with exchanges is simply that they could not do the demurrage accounting.

I connected my Mac with: nheqminer -1 eu.pool.gold:3044 -u xxx -t 4 -od 0. That I built from here: Yes CPU mining, baby, LOL. I don't know if I am on a testnet or mining, but it appears to be working.

Well you should be able to use any Bitcoin address you have...