In 2010, Austrian climber David Lama was held responsible for around 30 new bolts and hundreds of meters of fixed rope added to the Compressor Route on the mountain (due to bad weather conditions, much of the gear was left on the mountain and later removed by local climbers). Although the bolts were drilled by Austrian guide Markus Pucher, and not by Lama himself, it was done as part of his trip sponsored by Red Bull, and many climbers regard Lama and Red Bull as responsible. Many of the bolts were drilled next to cracks, which are usually used by climbers for protection on the route. This has caused a large controversy in certain climbers' circles, as his actions are unethical according to climbing purists. Although Lama was not aware of the sheer number of bolts that were drilled, he took full responsibility for the actions. In the upcoming years, he publicly regretted what happened.