I would rather not use a power then make a DM upset that things didn't go as planned for myself or them in their event.
And I do tend to use the powers that I have in creative ways (as much as the engine allows me to).. however on other worlds some dm's have asked me to participate expressly because of the psionic powers. To do things other characters can't.
Examples are breaking into planar hideouts, combining the planar energy power and dimensional door/banishment powers .. or using contact while scrying to find the location of a certain player character that has been kidnapped. ((although contact is just in the engine to open someone's mind to make it more accessable for other powers or persuasions.. ,lower save stats..))
The creative uses for psionics are pretty endless if DM's want them to be.
I just don't want to banish the wrong thing at the wrong time or try and do something that ruins a persistant plot because that isn't fair to the dm's or other player's
What I am asking for are specific guidelines I can use during Dm'd events or find if its ok to ask specifically if i can try somethng in the DM chat channel when I think of the crazy things I think of ..
Otherwise I will just have to side on caution and I'll stand in the back as support character which is also ok..

I enjoy playing... love the world and the plots and people that play..
its a very RP based world and its so wonderful..
thanks for the time..
KL
player of - Ji'mas