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Yes. He's posting videos from this person:

https://www.youtube.com/channel/UC-f5nPBEDyUBZz_jOPBwAfQ/videos

Named Brandon Kelly CryptoTrader on Youtube, who is NOT @mahmoudh

So he's stealing content, and reposting it as if he owns it.

He writes and speaks in Egyptian Arabic, english isn't his first language so rather than write posts, he'd rather just steal other content and upload cheap crap here himself.

Good detective work! .. So, do I report him to cheetah, or steemcleaners?

I would try @sherlockholmes first

Let him know that the vlogger he's stealing content from has 12,000 followers on youtube and that vlogger talks about cryptocurrency. This would be pretty upsetting for that guy to know @mahmoudh is stealing his videos.