James,
I can't speak for others, but I did not feel like you were "causing trouble" or the like. It is a bit startling to have a person be "evangelical" before they have gotten to know us and us them....
In "my" experience here, the folks that do that are more often than not a "flash in the pan" poster. Here one day, making bold pronouncements to folks with more than a little experience of their own, and then gone the next when not accepted as the new guru.
One gentleman did that a few months ago, and I sent him a cautionary private message, and his response was "oh, I thought this was a site for quilting ladies so I assumed that they would not be very mechanically enclined(SIC)"
WOW...
It was tempting to "out him" but he left on his own....