Read the article, thought that it was something interesting but probably not that applicable to me because I clear cookies on (frequent) browser close, don't enter my details into many sketchy sites, use multiple different (isolated) instances of my browser for different purposes.

Today, I get an email from a site that I visited yesterday and haven't heard from in 6+ months. It's too much of a coincidence for me to assume it's random so I dig into their website a little and they're using one of these services.

TL;DR: even though I'm relatively paranoid with giving out details online, one of these networks seems to have successfully identified me and provided my email to a website that I visited, who then reached out and tried to sell me shit.