I think Shelly did a good job with her explanation. Admin did not remove the post in question, and would not have. At the same time admin saw no reason to overturn a moderators decision as your post contains instructions to another poster regarding something not to post about.
"Lastly, me saying "stop posting about VENG" is ironic because in your TOS you're not supposed to discuss other stocks on the board"
TOS does not say that.
However, TOS does say:
"Discussion of post deletions and moderator/admin actions is not permitted on the message boards."
So while I don't know about your other board posts, you can take solace in the fact you've gotten away with twelve TOS violations on the Q&A board...