We hate the translation. Previously, it always had translation on by default; now, it inserts a link into every chat message from a person with a different region, to translate on demand.
Store cookies. Or something. Just let us turn it off completely and remember the setting, please. I'm debating writing another browser extension just to strip that feature, because of the PITA it has been. The rare usefulness nowhere near outweighs the endless, though trivial, battles.
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That aside, it has been handy to have, and works quite slickly. Scroll-back through several hours of history works well. And what can I say: it's a chat tool. It works. It doesn't do much else, and I don't want it to. Good job!