>>106215915
Actually shartyfag, "anti" comes from shipping discourse.
https://en.wikipedia.org/wiki/Shipping_discourse
Originally was used by women fighting over agegap BL yaoi fanfics, loliniggers started using the term because they kept getting flamed by similar people on Twitter. Anime-themed culture war grifters like Rev_says_desu took this and ran with it so anti is also used to describe people who don't like lolicon.