Proof : FriendlyChemist is an alt of Engg.Chakks.

Here's how : FriendlyChemist has a thread here : https://bitcointalk.org/index.php?topic=1568223.msg15739201#msg15739201 about selling a PonziScript.

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The video in that following thread is uploaded by youtube account: xploit
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everaja who is a known alt of Engg.Chakks [see their feedback for reference] has a thread https://bitcointalk.org/index.php?topic=1669430.msg16766592#msg16766592
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The video in that thread is uploaded by an youtube account Xploit
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Following FriendlyChemist's comment on that thread

Additionally,let me list down all the connected youtube addresses and gmail accounts that one should be staying away from.They all have same patterns and belong to the same user.
bitcoinenthu@gmail.com
sold6411@gmail.com
navidbhatti24@gmail.com
New bought youtube account https://www.youtube.com/watch?v=aRM94MLSX2g
https://www.youtube.com/channel/UCssdC2QOVdj_OgeWrvPD42g

Read the comments,seems like he already scammed someone off that ponzi script video.
http://imgur.com/a/XxHIC