I get that Asahi being super slow is really bad and frustrating, but Ruri not even taking some extra time to explain things is pretty bad too. She gives it a whole 1.5 attempts before saying "Fuck it." and pissing off back into cat form.
The author's name appears to be 7749, which is a part of memorizing the multiplication tables. 7 times 7 equals 49. The nine is written in an anti-fraud notation.
I don't really understand why there's an agreement when you're 55 chapters behind. Instead of translating stuff that's already been translated, why not just work on a new project.
I think credit is only considered stolen when they've stolen the translations. If a scanlation group goes on hiatus for 3 months and hasn't released a chapter in over 6 months, I think it's fair game to take over the project.