Compiling and deploying a fast trader arbitrage bot to earn...legit or scam?

Redirected to this video from a user on twitter...

https://www.youtube.com/watch?v=UtOrHj83hSQWatch the video and tell me what you more experienced users think...

to me seems like a scam, I mean you are deploying a contract which don't fully understand, in order to make it function you have to deposit at least 0,5 eth and let the bot do its work...who tell me that at some point in the contract there is some function that withdraw all the eth and send them to the scammer address? Is it possible? Moreover if anyone would start using this arbitrage bots wouldn't ethereum commissions reach all time highs? What do you think?

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EDIT: guys I know it sounds like a scam, I'm asking if someone with SOLIDITY knowledge can read through the code to search where is the fishy part...