I would not say that Chinese now are the target of scams and other illicit charges when traveling abroad.  It is a well known fact that in almost every country on Earth, tourist are fair game for getting a few extra bucks out of them. 
I have done a fair share of traveling abroad in many countries.  I owned a travel agency as a side business for the sole purpose of receiving large discounts when I travelled.  And to me it was funny to see taxi drivers, hotel and restaurant people, airport employees trying a rip off on me even when returning home, thinking I was a tourist.

Everyone gets screwed in Spain. That's the local custom. 

In Vancouver though Asians have been target for years by aggresive panhandlers and squeegee kids cause they know Asians aren't likely to stand up to them and are easily intimidated by anyone resembling a street person. At main and Terminal (any Vancouverite knows where this is going) I've had squeegee dinks walk straight past me and forcibly wash the car behind me cause there was an Asian woman in it then watch the woman sheepishly coughs up a couple bucks. 

Panhandlers do the same thing, and now I recall once stepping in and telling one to f#ck off when he was harrassing a young Korean couple on Robson who didn't know how to react to the whole thing. 

haha, maybe its payback?

It's too bad they're not allowed to believe in karma anymore because karma.

In Australia many Chinese tourists get ripped off big time. Far more than the usual markups you will find in any tourist hot spot. Those on group tours are the biggest victims. The ones doing the ripping off are the tour guides and store owners who are all of Chinese ethnicity. This practise is based on the same business model as the factory/shopping visits that you are subjected to during local tours in China. I am sure that there is a market out there for ethical tours where the whole tour is based on people being shown interesting and tourist places and also directed towards non commission fair value shopping experiences for their traditional gift purchases. I think that the reason they do not exist or are at best uncommon is that the consumer (Chinese tourist) does not demand to get rid of the bullshit from the tour and are accepting of the rip offs because they equate the cost of their gifts to the face gained by giving them.

This is just another example of the paradoxes that exist in China. Chinese tourists just bend over and get reamed when buying all manor of crap while on tour but will haggle all day over a Mao or two when buying from their local market.  

An eye for an eye...?
Also, when you see Chinese tourists buying luxury items in bulk, you can't feel bad for them when they get ripped off...

All I know is that when I go back to the states, I am going to mess with so many MK tourists it's not even funny

i'm going to scream NI HAO in their faces n shit

So how come Chinese can scam tourists ,and when it comes to other scam chinese they dont like it????? can anyone explain me ??

With ANY miscommunication Chinese have abroad, they perceive themselves as victims.

I hope they continue to be scammed and that footage of their crying families is shown.

On a side note, I just read how mainlanders are offended at having to register as "foreigners" to enter a nature area in Taiwan.