CC abilities are pretty annoying and only exist in other MMOs usually because of the large scale of the fights. For PvP (8v8) or PvE (8 players against 4-8 high level monsters) this isn't really necessary.
/notsigned. If it was going to be implemented it should have been done at the start of the game, not where we are now. Adding a new mechanic is unnecessary and would create a lot of new balance problems.
Cool idea, but we already have knockdown. If it offers pretty much the same effect, why bother? If you want to be a few steps away from your opponent, knock 'em down or snare.
/notsigned