I thought it was rather straight forward. Reddit is bought and paid for by large corps. Even in your own link they proudly display their corporate investors, such as Tencent, Fidelity Investments, VY Capital and SV Angel (corp owned investment firms), etc. Tencent/China just invested another 300 million and judging how reddit thinks of it's users and their wants, do you really not think they are allowing tencent/china to have special rights and privileges on the site or dictating how reddit will behave? Reddit is doing the same thing that Digg did 13 years ago, being bought out by it's investors (corporations) and selling out it's users. That is why Digg died and people all went to Reddit. Now I know the people on Reddit are super soft, but even they will abandon ship once China starts forcing their own policies on Reddit, which certainly will not be the far far left like their user base.

From that I clearly stated that corporate interference or ownership is a huge problem in the country and used big pharma as an example. If you are confused about let me know which part and I will be happy to try to clarify.