Hunh - I will say, now that I can post again, that I had trouble posting for a YEAR...(did you miss me? I was not much of a poster, but since I started in 2008 or so, i liked to chime in from time to time). Jim tried to help me, but it was unclear as to why there was a problem. It turned out to be that as I had 3 google accounts and logged in from different IP addresses on a regular basis, google flagged all 3 accounts; however it was only with the RBW group that my posts stopped going through. I tried deleting the 2 less used accounts, and that didn't help.
With the switch to the new google interface, and cleaning up all cached info in my keychains (important) I was able to post again. I had to search for every hidden keychain / login reference to all google accounts, and delete them (it took about an hour of scouring my hidden / utility files) Now I'll have to remember all those eloquent things, lost, lost to the google.
I stopped being able to post right after I sold my Saluki to "Rob in Seattle" - it was suggested to me that the RBW / google interface was punishing me for deaccessioning (though there's another Riv in the house).
Perhaps the keychain / multiple google account info might be of use.
Ron