Interesting, this seems to be the only reference to mind control or psychological control.  I took a look at the forum, was hoping for a broader discussion.

Mind control definitly doesn't need hypnosis. There are so many other
ways to acheive mind control such as conditioning. All hypnosis is in
this areas, is just another tool, just the same way a flogger, whip, or
any other toy may be used.

Trying to control a slave thru mind control techniques will come naturally as
the slave develops a strong trust and confidence in you. Just making
suggestions/comments can set in motion a chain of events in their mind that can
be staggering. Remember a slave is one that has totally submitted to you and
will strive to please you anyway they can.

The dominate can find that making a suggestion and
then observing their reaction, then their action to the suggestion helps them determine what the next suggestion should be! Over time you will find you are in total control and can modify behavior using suggestions. BDSM is all
about getting into someone head.

I think mind control is really the ultimate level of submission.