XCP may be a wonderful tech, and a real solution to many problems. It is a crappy investment because it is trivial to dilute it infinitely.
What makes XCP easier to dilute than XMR for example?
(Btw XCP is up +2000% this year, this is a fact. "Crappy investment" is a point of view.)
I am using a time-horizon discrimination between "trade" and "investment". XCP has been a marvelous long trade. Would I buy it, walk away, and come back in 10 years expecting my investment to have appreciated or even retained its value over that time? No. It has been a brilliant trade. That does not make it a less crappy investment.