when a rinnegan user uses the absorption tec does the chakra go into their chakra supply?
can they absorb to much and kill them?
and the last question doesnt absorbing nature chakra turn them to stone?
1. yes. as seen in the fight with nagato itachi vs bee and naruto, when nagato used the preta path to absorb the 8 tails chakra it beefed him up. however i believe when using paths the chakra is used to support the paths and doesnt go directly to nagato.
2. depends on what you mean. he can absorb so much that the victim dies of chakra lacking, but he cant absorb so much that he himself dies, because it is called INFINATE absorbtion seal
3. sorta, if you absorb too much then yes. but if you only absorb a little then it wont happen immediatly