According to @cookiedotfun, cSNAPS multipliers stack across actions, with the example that 5x staking plus 5x referrals equals a 10x total multiplier for earning cSNAPS from new content according to @cookiedotfun. According to @cookiedotfun, multipliers are not retroactive, meaning prior content does not benefit and users must create new content after obtaining a multiplier to earn boosted cSNAPS according to @cookiedotfun. According to @cookiedotfun, a detailed guide on cSNAPS Multipliers is available to help users optimize staking and referral strategies according to @cookiedotfun.