As the last Editor of the BCN, this is something I can speak to. Founded by John Jacobi, we were active for 19 years. For nothing more than a membership roster supported by emails received by the editor, formed into a newsletter and sent out to the membership, I think we did OK! I still have a large folder of pertinent emails, exchanges with individual members and the final membership roster. The reasons for John and I deciding to close down the BCN were several. Undoubtedly, lack of membership engagement was number one. In addition, there was always a percentage of "lurkers" whom joined the BCN, introduced themselves, and were never heard from again. By it's nature, the BCN was always meant to be a participatory organization. Thus, roll calls were held to clear out the "dead wood".
When John started out, he could generate up to five newsletters per week as our membership grew. Eventually this leveled out (although there was always more chatter during the spring, winter and fall seasons and drop-off during the summer months). By the time I took the helm, tried to do three postings per week, but often had difficulty making it two or even one. Sometimes I wrote in-depth articles of my own making, just to flesh things out enough to generate a newsletter. However, I suspect the real culprit was the formation of many online collector forums and social media platforms as well. Members could host or post their own photos, not have to wait a few days to get responses, etc. Technology had caught up with us, so the BCN went the way of the dinosaurs. However, John Jacobi and a couple members whom had made the suggestion, did form the BCN Facebook group. Years prior to that, a BCN sub-forum was also formed on the German Daggers.com website as well. Don't think it was ever very active (other than the mega-thread regarding SS attributed S84/98 T3 and other German bayonets). But, all has not been lost. Many former BCNers have found a new home here on the K98k Forum and I, for one, could not be more pleased!