For those who dont know-BCD is the official TWT OG Army page where you can get authentic BTS chart updates.he launched a website. The BCD app is a core part of our fandom and has generated more than half a billion streams. It’s a place where you can play games, win photocards, and stream while staying updated. Disclaimer: It doesn’t allow solos 🤭.most twt Army's know about this but I don't think most army on other platforms do #BTS #kpop #fyp #foryou #army