I don't think skill points are intended to help you level other skills, they're more for maintaining your current ones. So say if I had a 90 skill in using axes and my clan needs me to help terraform so I stop using my axes for a week and non stop terraform. Well my axes skill degraded since I didn't use it down to 84. So I use the points I got from terraforming to raise it back to 90.
It's to keep you from having to constantly grind a single skill while at the same time not allowing you to master all skills.
Skill degredation is not currently in the Beta so we're not yet seeing it's effects but when it's enabled you will.