Yes, it is somewhat common. There are always fans who have different opinions on the RWBY series. Some may feel strongly enough about what they perceive as flaws to create bashing fanfiction. However, it's not the dominant type of fanfiction in the community. There are also a great many fans who create positive fanfiction that builds on and supports the original RWBY concept.
RWBY bashing fanfiction is often about criticizing or portraying the RWBY series in a negative light. It might focus on things like disliking certain characters' development, plot holes in the show, or just having a different vision of how the RWBY universe should be. Some writers use it as a way to vent their frustrations with the original work.
Adult bashing fanfiction is a type of fan - created writing that involves criticizing or portraying adult characters in a negative light within the context of a fan - based story. It could be due to various reasons such as the writer's dislike of certain adult characters' actions, personalities or their role in the original work.
It's a bit of a gray area. On one hand, it's just a form of creative expression for fans. But on the other, if it goes too far and becomes slanderous or overly mean - spirited, it might not be ethical. However, as long as it stays within the boundaries of fan - created works and doesn't harm the real - life individuals associated with the characters, it can be seen as a normal part of the fanfiction world.
It's not as popular as positive Naruto fanfiction. Most Naruto fans love the character and enjoy reading stories that build him up or expand on his adventures in a positive way. However, there is still a niche group that enjoys 'naruto bashing fanfiction' as it offers a different perspective.
Sakura bashing fanfiction is fanfiction that bashes the character Sakura. In this kind of fan - made story, the author might rewrite the story in a way that makes Sakura seem less competent, more annoying, or just generally a character that the readers are supposed to dislike. It could be because some fans have different views on her character development in the original work and they want to express their dissatisfaction through their own fictional stories.
I'm not entirely sure specifically what that particular 'abby bashing ziva bashing ncis fanfiction' is about. But generally, in fanfiction, 'bashing' means writing in a way that is critical or unkind towards a certain character. So it might be a fan - written story in the NCIS universe that is critical of Abby and Ziva.
Searching for it can be a bit tricky. First, go to popular fanfiction platforms like FanFiction.net or Archive of Our Own. Once there, narrow down your search to the NCIS category. Then, in the search function, type in the exact phrases 'abby bashing' and 'ziva bashing'. But remember, this kind of fanfiction may not be everyone's cup of tea, and it might also violate the community guidelines of some platforms if it gets too mean - spirited.
Well, characters who had a rough start in the village due to Sandaime's decisions might be likely to support the bashing. For example, Naruto himself could be one. Given his difficult childhood with little support from the village at first, which some might blame on Sandaime, he could be portrayed as having negative feelings towards him in these fanfictions.
Some people like snape bashing fanfiction because they may not like Snape's character in the original work. Maybe they think he was too mean to the main characters, like Harry. So in these fanfictions, they can create scenarios where Snape gets his comeuppance or is shown in a less favorable light.