Life Skills - Population Growth

What I have noticed with life skills is that the only truly lucrative life skill is training. T8 horses go for hundreds of millions, whereas all other life skills pull in 5-10m on their rare outcomes. This can become more healthy of a market with the new players arriving. However, with the huge influx of players, and life skills being able to be maxed in a day or two, ALL life skills beyond Training will be rendered almost moot due to market saturation. It will not be long before a T8 horse is just something players give to new guild members for joining up. This will absolutely destroy both the market (for anything but dropped items), and any real need for life skills at all... it will be flooded. Leaving a Grind/PVP base.

My only idea, and I am open to others, is lowering Life Skill XP Gain. I know how unpopular this idea is, but it will drag the influx players back to a more ideal growth, and those who follow will therefore rely on those already maxed, until they can slowly join them. This keeps markets healthy, as it will keep newer players NEEDING the market, as opposed to merely ignoring it and maxing all their life skills and producing for themselves. It would also ensure that Life Skill Focus will happen, meaning players will focus on one or two instead of simply capping all of them.

Again, open to other ideas. I simply know that this wont be sustainable if the player increase is halfway sustained.