New upcoming update to Steam Community Market

"Note: Starting in the next few days, items purchased for Counter-Strike: Global Offensive/ Team Fortress 2/ Dota 2 either in-game or on the Steam Community Market will not be tradable or marketable for one week after purchase. We are making this change to combat fraud and scams, and to help matain a safe and healthy item economy within Counter-Strike: Global Offensive/ Team Fortress 2/ Dota 2."

That's right, after few days you can't trade or put back to the market after you have bought it from Steam Community Market or Store for Dota 2, Counter-Strike: Global Offensive or Team Fortress 2.

It's very good update against Steam Community Market bots which buys under priced stuff and resells back to market but what's your opinion for this: what would happen to legit players?