Looking at the first assignment, in my head I was like i am going to make this first assignment about imgur. Imgur is a photo/video sharing site that i have an addiction to. I rarely use facebook or instagram but i can be on imgur most of the time.
What I like about this community is what the people uploads, it can be pictures, videos, gifs, meme it could be about telling a story, or a how to guide, current events, or some cat videos (cat tax) or someone just venting. And the community contributes to post via comments or pictures, videos, gifs, meme.
I guess what makes it even more special is the post system. Whatever you post gets a point. If someone likes your post, you will get an upvote, and if they hate it, you will get a down vote or no vote. The more upvote one gets the more your post will likely make it to the front page. Overall, it come downs to being creative with what you post. Everything matters from post title, to quality of the post, to relevance of the post or even a username.
I find comments reading fun and interesting.