In fairness, Ilpo Juvander's web log stopped getting AdBlock entries in 2015, the same time as xyr Twitter account stopped getting entries, and the web log ceased getting any entries at all in 2017.
True, but that makes it all the more weird that they'd delete them in the first place. It's like they wanted to remove any evidence they were involved at all.
The only remaining indication is the domain, and their iOS app that's still up on the App Store.