For me it's not really about fast moving rooms or not, but that I want to see a bit of context to what was said. In IRC it's easy to see more than 60 lines back

For me it's not really about fast moving rooms or not, but that I want to see a bit of context to what was said. In IRC it's easy to see more than 60 lines back without having to scroll, but all modern alternatives don't have that as a concern at all. Have a few people paste code, liberal use of quoting for messages that are less than 10 lines up (so you are seeing the same message 3 times repeated on the screen), people posting images and you'll be lucky to even have a tiny fraction visible compared to the IRC view. I can of course see the appeal of all those features, but at least for me it translates into a much worse UX in the end.