I can understand your sentiments. I have for some time felt that my own sitch just never fit in with what most folks report in these forums. Although DB'ing helped me personally, it seemed to actually do more harm than good in my own M. As such, I've developed a whole variant philosophy about how one should approach the type of WAW I had to deal with -- the typical DB approach was all wrong.
The lack of response thing: Yes, well, I've noted that too of late. It has gotten so that I rarely lurk in the Infidelity forum any longer -- and that might explain your particular case. But even in my more regular abode of the "Surviving" forum, responses and communications have waned or become sparse. People seem too tied up now of days.
I am sorry for your situation, and that your M now seems to be a lost cause for you. What they rarely tell you is that seems to be the norm more than not.
Anyways, if you do decide to move on from here, I myself would understand, but say that you will still be missed. Perhaps a change to the Surviving forum instead of dropping DB altogether? Lots of our old comrades are still there.