Part 1: At the very least, It's been said that Damara (Aradia's Dancestor) and Meenah had a similar conflict to the one Vriska and Terezi/Aradia had. She seems to have gotten along fine with Porrim, though, and Latula seems to have had a friendly rivalry with her for the most part. She does seem to have thought Kankri was a pompous windbag, but, well, he is. Of the remaining Pre-scratch trolls, She doesn't seem especially fond of Mituna Captor (but even his Matesprit admits he's a grump), and she hasn't commented on Meulin or any of the unnamed ones yet as individuals.
Part 2: Mindless violence wasn't present. But the most recent flash game makes it clear that that doesn't mean it was a perfect happy place; Everyone of the Beforus trolls we've met so far apart from Aranea clashed with the culture to some degree, and even Aranea admits it created serious issues for her friends.