Two of those years it was my points listed (ie winner in 2012, 2015 & 2022) I used the same strategy for this year and I have zip. I have never been out of the top 10 (possibly top 5, would have to check to be sure). I should have used my themed list here. At least I have points in that pool.
I only remember one time when the defending champ got a goose egg the following year, and that was when Rachm Qoch went out in a blaze of glory picking all the members of an obscure death cult.
And just for fun … here is the post with past winners. It needs updating. https://boards.straightdope.com/t/archival-list-of-death-pool-winners-awards-2003-present/805718