[lyton]

There are many theories about this, but the one I find most plausible is that the airlines sell the data to Lyft.

Previous HN discussion here: https://news.ycombinator.com/item?id=43687696 Another forum discussion: https://archive.ph/wip/ck9CJ

[preciousoo]

Holy shit. I’ve also been similarly creeped out by this behavior as well, and did the same setting changes as the original commenter. This comment made me remember I signed up for a Delta/Lyft promo way back in college. In my case in explicitly signed up to link both accounts, but I wonder if they have other methods