@nord.1021
I've only used my SKN ppt once. Immig stamped my entry, but not my exit.
I've traveled a lot (on a different ppt) and have found some other country's immig officials inconsistent in stamping entry/exits.
I have no idea if this might be the case with SKN.
I don't see why you would be concerned about entry/exit stamps for SKN.
If you want to prove 183+ days residency on SKN for tax purposes, you'll need more proof than just a couple of ppt stamps, I'm sure.
SKN is beautiful! Both physically, plus lovely, warm people.
We are going back as soon as we can.