No one is making the Bitcoin price is is decided by allot of other things I do not know about. There are some people here on this forum that know precisely how the prise works and stuff.
the exchangers are making the price by using the bots as Mtgox did it in the past. it's so simple

Are you sure? there are a lot of exchanges and a lot of people that have an interest in exchange or mining, it's difficult a "trust" behind it...
there are only 5-6 big exchangers and these ones are forming a cartel(example: Bitstamp and Coinbase are twin brothers; same shareholders). they are using bots too.
The small exchangers are taking the price from the biggest ones .

it's so simple to manipulate the price.
simple - maybe, but it sure isnt cheap. volume on chinese exchanges is something that definitely should not be taken seriously, but the price is something else.
the pump in price may be artificial, but it cant stay high for long if there's nothing backing up the trust people have by not selling. If you can sell at that price, it aint fake.