I remember an ask awhile back that asked when the first time two characters talked verbally to each other and I think you said it was John when he ascended to godtier, but why wouldn't it be around page 004187 when Aradia gets her robo body and is talking to Equius? Or is it because it's technically a spritelog?

If you want to count spritelogs then the first verbal encounter would be John with Nannasprite, but not counting spritelogs the first verbal encounter is [S] Past Karkat: Wake Up