Lil B ("The BasedGod") redefined based from an insult into a philosophy of positivity and fearless self-expression. Internet culture adopted it as the stamp for opinions that are confident, contrarian, or refreshingly honest — frequently in the reply format "based" with nothing else.
The based/cringe axis became a core internet judgment system: based means admirably authentic, cringe means embarrassingly inauthentic. Note that in some political corners "based" took on edgier connotations, but mainstream usage is simply strong approval of a take or move.
