Moving it to main scenario would be a good start since its a main scenario quest and a mechanics fight. That and upping the base reward to 100 seals + 100 seals for newbies would be enough to get people to do it since it would be slightly faster than a praetorium/castrum run.

All thats needed is to make the adds hit lets or die quicker so they dont keep chain wiping people and making the DK's do a large chunk of damage to Vishap and its fixed.

Till then its Steps of Ragequit with obligatory logoff/dropout. Just isnt worth the aggro.