Nutomic@lemmy.ml to Today I learned@lemmy.mlEnglish · 3 个月前TIL that Reddit has achievementslemmy.mlimagemessage-square9linkfedilinkarrow-up117arrow-down112file-text
arrow-up15arrow-down1imageTIL that Reddit has achievementslemmy.mlNutomic@lemmy.ml to Today I learned@lemmy.mlEnglish · 3 个月前message-square9linkfedilinkfile-text
Gamification.