Are free anime sites illegal?

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Tags

1. #holders
2. #copyright
3. #online
4. #anime
5. #illegal
6. #legal
7. #offical
8. #videos
9. #watch
10. #youtube
11. #because
12. #people
13. #upload
14. #animes
15. #trouble
16. #producers
17. #crunchyroll
18. #legally
19. #think
20. #website
21. #still