Without some basis for believing that the process that produced your prior was substantially better at tracking truth than the process that produced other peoples’ priors, you appear to have no basis for believing that beliefs based on your prior are more accurate than beliefs based on other peoples’ priors.
Robin Hanson, ‘Uncommon Priors Require Origin Disputes’, Theory and Decision, vol. 61, no. 4 (December, 2006), p. 326