What does it mean on Reddit?

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Tags

1. #frowned
2. #sharing
3. #quick
4. #something
5. #reddit
6. #moderators
7. #reddiquette
8. #before
9. #search
10. #avoid
11. #being
12. #subreddit
13. #original
14. #embarrassed
15. #content
16. #reposted
17. #highly
18. #unforgiving