Sleeps,
Not that I have PM'd you, but when I answer a thread in a PM instead of a post on the board ( which I do sometimes)-- it's always because I fear putting my thoughts/ideas out in public and often feel more comfortable one-on-one.
I can't speak for others-- but I very much doubt it's that they were told not to speak to you--- I think you are a great person and can't imagine anyone not speaking to you.
And yes the "thread killer" is an added fear I also have!
mandy