I don't like this idea. It would make it even easier to self sustain your own character base. We used to have 5 characters. Now we have 6 or 7. With soulstones we have even more skills that can be flopped back and forth freely. I don't like the idea of the existing soulstones, either. All they did, and also the 2 extra character slots, was make cooperation and trading between players more uncommon. That's bad in my opinion.
Personally, I think that stats Soulstones go in pair with skills Soulstones.
I mean, once players have been given the ability of swapping skills through the use of skill Soulstones, and the game handles stats for different skills, differently, then it became automatic, to my opinion, that with players being able to swap the most varied skills on their template, they would also need to modify the character's stats, accordingly.
I mean, a Mage needs intelligence while a dexer needs dexterity, just to name an example among many possible..... This means that when players where given the abilty to swap magery and eval int onto a charcacter that was before a dexer with swordsmanship, anatomy etc. players will have to adjust the stats accordingly.
This may become a chore and a frustrative task depending on how often skills are swapped and how different they are.
That is why I think that since skill Soulstones are here to stay, then there really is no reason, IMHO, not to also have stat Soulstones which would only reduce the annoying task of adjusting stats manually whenever skills that need adjustment are swapped from a skill Soulstone.
Bottom line is, as I see it, that adding stat Soulstones to the game would be an addition to make the game more enjoyable because less frustrating and requiring less repetitive, annoying tasks.........