This is a followup to this question about trading firearms between individuals in Oregon.
An answer says
Apart from transfers to and from the government, you can freely transfer a firearm under subsection (4)c to a spouse, domestic partner, parent, stepparent, child, stepchild, sibling, grandparent, grandchild, aunt, uncle, first cousin, niece, nephew, or spouse or domestic partner any of the above. ... Not a friend, not a second cousin, not an ex-spouse, definitely not a stranger.
A comment points out
So giving a gun to my second cousin wouldn't be allowed, but could I give it to my father who gives it to his cousin who gives it to his daughter, and thus it legally ends up with my second cousin anyway?
Could a social media company, given knowledge of personal relationships, offer a service for how to transfer firearms without a dealer, using the above "cousins all the way down" method? (Are there laws about avoiding this law?) Obviously this won't work for everyone, but for two relative strangers that have a long family history in the general vicinity it seems possible to work out.