I dont know what is the reason why he can't even afford to buy a hardware wallet on his 1400 Bitcoin that has been scammed. Instead of using a hardware wallet to store his Bitcoin. The receiver address it seems moved the Bitcoin scammed. It is the same strategy, transfer into different addresses until Bitcoin can be mix into mixer service and the cashout.
I don't really understand, the victim of scam knows how to post in Github, probably he had knowledge upon storing Bitcoin in a safe wallet on this community.
I've stored a few thousand on a hot wallet in the past, he could've done the same? Just found his seed words from 2014, put them in and got his wallet back (or just copied the wallet file across).
Keep in mind that this guy may also be trolling and/or baiting for donations. That's not the first time something like this would happen.
Won't be the last either, it's similar to the guy who posted the signature to an address containing 1000
BTC which climbed to several thousand replies at least in the space of 12 hours.