You act like there was people in this thread to start with! Lol
Am sure it is on a reddit thread somewhere. Basic pattern:
Obtain exotic (y1 ideally)
Level it up (consuming motes of light does this now)
Shard it for 2 shards instead of one
Doesn’t require unlocking skills on the item either. Just like blues and purples you get extra stuff just for leveling the item up before sharding.