I know, I feel that way too. I wish it were summer 2016! In my opinion, those were the best times of the CB. I miss a lot of people who either left or don't come on much anymore. I don't have any advice, except to tell you that you're not the only one.

I have felt that also Leafpool. I suggest to take a break for however long it takes and come back to see if you need to lengthen it. I am juggling a lot of things right now and I am thinking that I will take a break sometime next weeek. I have been thinking about the CB way too much, and it's as if my whole world revolves around it. Hope this helps!

I've been feeling similarly. I keep remembering threads from a year ago, and also feel overwhelmed with everything new, most of all feeling like it doesn't really matter. 

Maybe you should take a short break, or change in your perspective of the CB, make it less important in your agenda.

However, I think the CB is still a great place. One good change I've noticed is that people actually remember when they've joined a ski lodge! Soon after I first joined I started a ski lodge that never got off the ground, and it took several posts for anyone else to comment. Now, I'm writing several things (and I will finish them! I will!) and on each people are reading and enjoying. 

Also, I like there being so much activity. It can be overwhelming if you've been away for a while, but makes the Chatterbox lively.

That's just my three dollars. 

I think a lot of us who've been around for a while feel that, too. I miss the AE drama, RPs, and things we all did not long ago. Not just AE things, but CBers, activities like Gared's Boarding School RP and World Domination, Brooke's amazing stories, Hotel La'Fey (I think?), and yes, even some of our wars, because that showed we were growing together.

Does that mean you, I, and everyone else here facing nostalgia should leave? Well, let's think about that for a moment: when life gets boring, you are doing the same old thing every day, your friends move away, you are procrastinating, feeling bored, and you are like, "why can't I be a kid again? Why can't I turn back time to last year when my friend was still here?" Well, I mean, you kinda can't do that, now can you? As much as we'd love it. That means we have to make the best of our lives, and if we are missing the past, bored, make the past the presence. Discover a friend who reminds you of your old friend, create new hobbies never before made, be weird, and enjoy life.

Using that perspective, then to answer your question, no, none of us nostalgia-feeling kids should leave. We should make the past, the timesick feeling we have as our presence. Create a life, new activities, friends, and everything that we didn't have in the past, yet don't have now. Instead of AEs, maybe invent something new? Step out of the box further than Brooke did when she created the first AE here. Further out when Abi created the soapbox we all love and adore to this day.

So yeah, enough of my ranting and philosophy! The choice is yours, but I do believe nostalgia is a thing in your head shouting to be innovative and original. Make your past your presence, but don't repeat history. Be and make something never before seen, and your solutions will be solved. I hope you find the best of it all!