Description of selected online communities
| Data source | Description |
|---|---|
| Quora | Quora is an American social question-and-answer website and online knowledge-sharing platform. Users can post questions, answer questions and comment on other users' answers. As of 2020, the website was visited by approximately 300 million users per month. In our study, we have included 58 posts in our data source |
| Reddit is an American social news aggregation, web content rating and discussion forum platform. Registered users, commonly referred to as “redditors,” submit content to the site such as links, text posts, images and videos, which are then upvoted or downvoted by other members. As of February 2025, Reddit is the sixth-most-visited website globally | |
| Zhihu | Zhihu is a Quora-like question-and-answer platform and news aggregator. Originally based in Chengdu, China, the website was launched on January 26, 2011. By the end of 2013, the number of registered users on Zhihu had exceeded 10 million, and reached 17 million as of May 2015, with 250 million monthly page views |
| LIHKG | LIHKG is a multi-category online discussion forum based in Hong Kong. The website has gained significant popularity since its launch in 2016 and is often referred to as the “Hong Kong version of Reddit.” LIHKG is particularly well known as one of the primary platforms for discussing strategies and coordinating the leaderless anti-extradition bill protests in Hong Kong in 2019 |
| Data source | Description |
|---|---|
| Quora | Quora is an American social question-and-answer website and online knowledge-sharing platform. Users can post questions, answer questions and comment on other users' answers. As of 2020, the website was visited by approximately 300 million users per month. In our study, we have included 58 posts in our data source |
| Reddit is an American social news aggregation, web content rating and discussion forum platform. Registered users, commonly referred to as “redditors,” submit content to the site such as links, text posts, images and videos, which are then upvoted or downvoted by other members. As of February 2025, Reddit is the sixth-most-visited website globally | |
| Zhihu | Zhihu is a Quora-like question-and-answer platform and news aggregator. Originally based in Chengdu, China, the website was launched on January 26, 2011. By the end of 2013, the number of registered users on Zhihu had exceeded 10 million, and reached 17 million as of May 2015, with 250 million monthly page views |
| LIHKG | LIHKG is a multi-category online discussion forum based in Hong Kong. The website has gained significant popularity since its launch in 2016 and is often referred to as the “Hong Kong version of Reddit.” LIHKG is particularly well known as one of the primary platforms for discussing strategies and coordinating the leaderless anti-extradition bill protests in Hong Kong in 2019 |
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