Shadow Complex cheaters will have scores deleted, Gamerscore reset

I doubt it. That wasn't cheating. That's a gameplay mechanic built into the game...

No idea what constitutes cheating. The article didn't tell us.

I think they are refering to those that cheated in the game's scores. For, example a few people had 99999999 bomba punt, where as the closest one after that had maybe 2500.

Well, if that's the case, Microsoft shoudl check out the leaderboards for TMNT 1989 and check out all the people who have a score of 9999, which isn't even possible. I'm sure there are other games too.

Hmm lets see, check the leaderboards for Texas Hold Em, Wik: Fable of Souls, even Call of Duty. So far, those are the only games that I KNOW of that have leaderboards that I play...and there are most certainly cheaters/glitchers in all of them. Finding score multipliers or glitches is generally the preferred method. In Nazi Zombies the guy who has the #1 on the first map survival rank glitched outside the house where the zombies didn't attack him. He would pop some zombies, put his controller down, pick it up a few hours later and continue. I asked him personally, he responded via XBL though I've forgotten his name (and don't own the game to verify)

In Wik there was a way to get your loops score multiplied by 15, so instead of scores like 498 (my personal best, I should be ranked #4 instead I'm 59) there are scores starting at 800 through 3100... They have since patched the glitch but never removed the names from the leaderboard.

I agree, Microsoft's "correction policy" page repeatedly mentioned players who cheat through means outside of the game. Exploiting a glitch would be a bigger fault of the game than the player and wouldn't qualify as cheating under this policy.