So people can talk to other people about their shared
love interest, books? Sort of like this thread?
Book clubs work best if the members have at least somewhat similar tastes in reading and everyone is on the same page about what they want their book club to be, as some people are quite serious about their literary discussion and other people just want to have an excuse for a social event with some book talk.
I get all the literary discussion I want or need at work, so on my own time I read to escape all that

.