Reddit is quite popular and generates a lot of traffic. However, they must have invented some interesting strategies how to deal with SEO issues.
I mean they have two SEO antipatterns as features.
- Tonns of outgoing links
- A lot of Copy & Paste stuff
How do they perform well? Is it only their gravity (and SEO is just as is). Does the amount of unique content (Like comments generated by users) outweigh the rest? Or any other relevant strategies they or similar sites use?