What a joke. Your explanation is biased and tainted by an inaccurate train of thought. The "other scanlator" does not own the series that they, themselves, steal from the copyrightholder, so another scanlator is not stealing from the "other scanlator" but is also stealing from the copyrightholder. Nothing is stopping the "other scanlator" from continuing scanlating the series except, perhaps, their innate cry-baby attitude.
what kind of question is that? do what you want, my opinion shouldn't be relevant to your efforts: you're doing it for freeIs it unacceptable