I didn't specifically ask them that question, but I believe that they've liked my social media activity and my writings: wrote a bunch of blog posts in Finnish when I was campaigning, also a book on the topic of copyright reform. I guess they considered my writings persuasive and well-reasoned. Also some of them used to be former Pirates who shifted parties when they saw that things weren't working out.

I don't know if we'd actually disagree on that much: e.g. the party is generally aligned with liberal values, which I tend to endorse, and has valuable stuff on its platform, like supporting a universal basic income. The specific people who've tried to attract me have also all been associated with a subgroup within the party that's explicitly focused on science- and reason-based decision-making. Of course there are also points of disagreement, but that's unavoidable when dealing with other people.