Nades fly farther.

If you strafe before chucking a nade it will fly quite a bit farther. If you dont believe me go into basic training, pull out nade, aim at spot on wall and chuck a nade. Then Strafe SIDEWAYS and chuck nade, front back works as well, but this is to prove any moving at all increases distance. Dont move your mouse after chucking first nade, you will notice hits decently higher.(If you're to close to wall you may not notice, try picking something decently far away)