It's hard to say exactly how common it is. There are so many fanfictions out there that it's likely there are some cases of line theft, but most fanfiction authors are creative and try to come up with their own original takes on the Harry Potter world.
It's not extremely common, but it does probably happen on occasion. The Harry Potter fanfiction community is quite large and diverse. Most fans who write fanfiction are in it for the love of the series and the creativity it allows. They want to build on the world J.K. Rowling created in their own ways. However, there may be some inexperienced or unethical writers who might be tempted to steal lines from the original books, thinking it will make their fanfics more appealing. But overall, the community as a whole seems to value originality and proper use of the source material.
The Calvin and Hobbes winter comic strips often showcase Calvin's imaginative adventures in the snow and his humorous interactions with Hobbes. The art style is charming and the stories are heartwarming.
In the Walking Dead comic, the leader of Alexandria is Douglas Monroe. He plays a significant role in trying to maintain order and protect the community.
It's an adventure-filled story about some dragon riders and a mysterious stowaway. There are likely exciting challenges and discoveries along the way.
Yandere school girl yuri manga usually showcases unique character designs, a focus on the girls' inner turmoil, and sometimes a touch of mystery or suspense. The romantic aspect is often unconventional and filled with drama.
You can start by choosing colorful and eye-catching comics. Also, arrange them in an organized and visually appealing way.
I'm not sure exactly what you mean by that. 'Hentai' typically refers to adult or explicit content. But I need more context to understand the specific nature of this manga.
I'd recommend 'Blue Spring Ride'. It shares elements of friendship and self-discovery that you might find in Megumi and Tsugumi. The art style is also quite engaging.
It's a form of adult-oriented comic content with potentially explicit or unconventional themes.
The 'Wished You Were Dead' comics usually feature characters with deep-seated grudges and a lot of suspense. The plot twists and turns, making it a thrilling read for those who like a bit of the macabre.
Shen Zed's Tumblr comic stands out because of its unique sense of humor and creative illustrations.