Rule question concering a stradlle and blind raise

[VeryTnA]

The straddler may Not "pre" raise his own straddle. When the action is back to him, he may raise as an option. Any action on his part prior would be considered out of turn and not allowed. Just like the BB/SB are not allowed to pre raise. Is he trying to make it more expensive for someone to steal his Straddle? What happens when his staddle is raised? Are they allowing him to remove the out of turn bet if he doesn't want to complete?