I'm not sure I belong to DFO, because I don't visit a DFO website, but I do get an email blast every 2 weeks or so. It is entitled Drum Forum (DrumForum.org), and it appears to be highlights of the latest topics. I hate to say this, but the subjects are often quite lame. And some topics aren't even related to drumming!
The participants seem a lot younger and more "social media" types than us VINTAGE old guys who like nostalgia and history. This DFO email blast seems to have a number of Facebook type members - looking to be "on stage," looking to be noticed.
I do scan all the topics on the DFO blast, and I occasionally read some that sound interesting, but I cannot recall anything that I've actually learned from DFO.
On the other hand, I learn constantly from VDF, and even on subjects that may not be high on my interest level. I check VDF a couple times every day, and I read all the "new" postings, regardless of the subject matter.
As a vintage drum guy and a life-long history buff, VDF has my attention. Comparing the DFO email blast and the VDF, I prefer quality discussions rather than a larger quantity of social-media type blather.
I refuse to participate in any social media. I'm part of "The Resistance." Call me a dinosaur. Long Live the VDF!
Regards, MB