Since 1998 he has been a member of the instructing team of the South Tyrolean mountain and ski guides.

In 2007, he opened a new route in the Eiger Northface together with Roger Schäli which they named Magic Mushroom, with 21 rope lengths, 600 climbing meters at rating 7c.

[3] Because of his special relationship to the Drei Zinnen he has been nicknamed "the Zinnenmann", also the name of a documentary.

[5] In 2018 and 2019, he led German president Frank-Walter Steinmeier and Lukas Meindl onto various peaks like Schwarzenstein (3365 meter) and Floitenspitz.

[6] Hainz was married from 1995 to 2011 and lived in Reischach (Riscone), near Brixen South Tyrol.