I agree with u buddy. Sometimes I'm distracted by some things, got a phone, or door bell and then I forget what the whoel chat was all about or Im very tired and realise I dont know what ive just read or it contained some ancient english and I had to check dictionary (srsly the chat can get very confusing if you dont know all the words, and u really gotta read all that again), endless possibilities. But I could always scroll back and read it again and I really approved of it~! Also sometimes ppl rush u to go thru cutscenes, yes u can rewatch cutscenes, but u cant reread what NPC said, so in these situations I just screenshotted the chat and had no problems with that whatsoever.

Some ppl dont care but it should be an option beacause - why not? To some of us it could be very helpful.