I've played probably less than 1% of the games discussed on this forum, and generally play at most 3-4 games a year, finishing maybe one or two, and yet I still feel that I can come on here and talk with all of you, share my experiences, learn from all of your experiences, and generally contribute to the forum and feel the benefits of all the discussion on here.
I don't think breadth of knowledge is all that important, as long as one is thoughtful. You can learn everything about the entire universe from one book, movie, or game, or without reading a single book, watching a single movie, or playing a single video game. I could talk about video games with someone who has played exactly one video game, and someone who has played 10,000, and learn from each conversation
So, in that way, I don't concern myself too much with finishing things or allocating my time to keep up with anything. My main hobby is reading books, and I write about books and have even started a podcast about books, and there's plenty popular and influential books that I haven't read, and plenty that I've started and found that I didn't have much interest in. However, I do feel that I've developed the ability to think and talk about books in some depth, and explore aspects that are sometimes not obvious.
I do go on this forum sometimes and see a lot of games that people have played that seem really interesting, that I might enjoy playing, so I write them down and then think I'll get to them eventually. A lot of them I end up realizing that I enjoyed reading about them more than I enjoy playing them. Some of them, I like the feel for a few hours, and then lose interest. I played one hour of Persona 2: Innocent Sin, and I thought it looked really cool, but the mechanics alienated me. I still consider myself to have played Persona 2: Innocent Sin, and if someone asked me about it, I'd say that I thought the style was very cool, and I liked the way the 3d camera interacted with the 2d character sprites.
In my head, I have a version of Persona 2: Innocent Sin that is built off my small experience with it, and I still think about that imaginary game quite often, and maybe it will inspire novels or what-not that I write in the future. Who knows! But that's something that's there in my head now. And there are a lot of games that, in my experience, are much more interesting in my imagination than they are in actuality, and so maybe it's best to keep them there.
I am quite isolated from the general video game discussion community, or really the discussion community for anything except strange ideas and old books, so perhaps I don't feel the pressure that exists in those spaces. It's probably easier for me to chill out because of this.
But I think we're all pretty chilled out here. There are people here who only play weird old games that no one has ever heard of, people who only play new games, people who play an eclectic mix of the two, people like me who don't really play games, people who play a particular genre to the exclusion of all else, etc, etc. We're all here to chill out and hang out, and all this variety is what makes the place so wonderful. There is no standard anyone is being held to, except the standards we impose on ourselves.