What's the point of Diablo seasons?

Related questions

1. How do I get the bones of Rathma set?
2. What is a legendary gem in Diablo 3?
3. Where is the grace of Inarius set?
4. Where is Maghda Diablo 3?
5. Where is the Inarius set dungeon?
6. How long is season 15 Diablo 3?
7. What is the best build for Diablo 3?
8. Do you get to keep your seasonal character in Diablo 3?
9. What's the highest level in Diablo 3?
10. Where is necro set dungeon?

Tags

1. #scratch
2. #should
3. #levels
4. #earned
5. #opportunity
6. #materials
7. #every
8. #optional
9. #recurring
10. #items
11. #leveling
12. #fresh
13. #paragon
14. #previously
15. #start
16. #character
17. #hardcore
18. #without
19. #normal
20. #months
21. #allows
22. #season
23. #seasons