Twelve-times Ursa Major Award winner Kyell Gold has announced his withdrawal from the Best Novel and Best Short Story categories this year, and for "a few more going forwards", to ensure that other authors win:
There is precedent in other awards for frequent winners stepping back. One of the people on the Ursa Major committee told me that in a musical award, when someone wins three years in a row, they are retired from that category by the award. That's not how the Ursas work: they have been very hands-off and admirably resistant to public opinion. When Stan Sakai won the Best Comic award multiple years running, they assured people that in time, other comics would win, and they were right. In response to my multiple wins, they have assured people that, in time, other authors will win.
I have no doubt that they are correct, given the profusion of talent in the fandom. In fact, each of the last two years I have been convinced I would not win one of the two awards (perhaps neither). But I have also observed that it would probably be better for the writing scene if that day comes sooner rather than later.