What's to stop you from just running away with all our coins after we hand it over to you? Or what's to stop you from not paying us? I reckon groupbuys are even more risky than pre-orders. Triple the risk even.
"I started to fully support KNCminer and to invest in them as of 23/5/13."
No you haven't. Invested in what? As far as I know, you haven't sent them any money to date. So that's a bit misleading.
We could find a good solution to this together, I think.. I like to act transparently!

...and, as you know, there are many way to "invest" in things and less space/time to explain full details on it every time! I did't want to mislead anyone, thank you for your impression-sharing!!!

Cheers!
-anykeywhy-