nope, this is not going to happen. This is a SMP server without and 'cheat hacks' (if you wanna call it that).
Also this would have no use as this is griefing if used in the wrong place. If this is to be used on mobs (for example) you wouldn't get any XP as you didn't kill the mob. You probably wouldn't get any drops as the mob would be on fire or the explosion destroyed the drops.