Are they even coincidences? To me most ads are shit thrown against a wall, that some of them end up relevant to me is just statistics, every once in a while some shit will stick.It's just a coincidence. I'm getting Valentine's app suggestions and I'm lonely as fuck.
Not to say I've never gotten targeted ads, I definitely have after certain searches, thread posts or emails, but most are junk so it's hard to tell if one of those relevant ads was truly targeted or just something that finally became relevant that I'd been ignoring previously because earlier it wasn't.