With the exception of my posts, almost all the posts are followed by "tons" of lengthy and well thought out comments. Rarely do I have anything new to add to them. Usually on Facebook I can bring a new slant to a post, not here though. Damn, people have it covered, and usually the sarcasm also. Plus, I rarely have the patience to read all the comments. The addition of groups to this site was a great thing.
You'll find your voice and it'll probably be a welcome one. The interests categories are a good place to start and maybe eventually you'll start your own interest group. Also, I'm not a fan of lengthy well thought out comments, especially the lengthy part. That's why I keep mine short and shitty.
I've been searching the Internet for intelligent life for years. Facebook is full of inane, superficial fluff such as stupid pet pics, photos of food and fake news. Not much with substance. Anything I post seems too controversial for everyone else and many people are offended by political and religious opinions I have. Craig's List is just the Wild West of trolling and baiting. Ugh!
I think I have found a smart community here who like to talk about things that matter. And I'm glad my opinions haven't hurt or angered anyone.
I'm having trouble connecting with the site ... so far. As you've mentioned, someone else has already made the valid points by the time I come along. What comments I do make may get Likes, but not much in the way of replies. This probably has more to do with me and my contributions than any failing on the part of the site, but still, if I can't connect eventually, I'll probably drift off.
I wish the site had a chat room. But, having been one of the moderators on an atheist chat once upon a time, I totally understand why the operators of this site probably aren't interested in adding one. So. Many. Trolls. And hard to keep things from devolving into ... what chat rooms usually devolve into.