A couple of years ago, I answered a question (*) on EE.SE that was subsequently migrated to Home Improvement. Prior to migration my answer had IIRC about 5 upvotes.
I didn't have an account on Home Improvement at the time of migration. But at a later date I joined the community and at that point the backdated reputation that was transferred over was linked to my account.
For various reasons I ended up deleting the answer on Home Improvement.
I've not been particularly active on Home Improvement, so it has taken a while to notice that despite the fact that I deleted the answer, I still appear to have the reputation from it.
I was under the impression that any reputation from an answer is lost when it is deleted. However this does not appear to have happened.
Is this a bug in the system? or am I missing something?
(*) I've tried looking for the question itself, but can't remember what it was called - I know only that I deleted my answer on Sept 20th 2017 as I ended up with the disciplined badge on Home Improvement. Found it.