Only when the T&C is transparent;
If I have doubts regarding my play-style contradicting their terms, I always get confirmation from support.
So most of the times, yes!
And out of interest, how often would you say you get to a point where you could cash out a profit? (from the bonus deposit)
Don't know why but I just feel that if I take the sign up offers it gets them out of the way and will have less problems later.