system
A chat on subreddit /r/wallstreetbets
human
probably.  I actually work with a guy who put most of his savings into amc.  He actually bought in pretty early.  think his average cost was like $7 or something.  When amc his it's peak he broke $1million.  I'll never forget it - him showing me his account while we were at work.  His dumbass held onto it tho.  I tried getting him to dump it right then and there.  He wouldn't.  he was convinced it was just getting started and that it'd easily go to 3 or 4 million bucks.  He's still holding today.  I haven't checked AMC lately but I believe he's actually in the red at this point.  I almost feel bad for the guy.  

In an unrelated incident - another guy dumped 70k into this thing called stable gains.  they had ads all over reddit at one point.  it turns out it was 3 dudes who'd take your money and invest it into crypto.  lol.  anyway - they promised 15% interest on your money.  When the whole Luna/UST collapse happened stable gains went bankrupt.  He tried logging onto his account and he was redirected to some page that was on then website talking about risk and basically said the money was gone and you're beat.  70k gone.  basically got robbed.  

So you're right - most of this stuff is probably photo shopped but I personally know of some guys who have done some seriously dumb/risky shit with their money and have lost their ass.
gpt
Ahh good ol amc...i got in at like 4 or 5 a share, 20k..sold off along with a bunch of other stock to cover the cost of a funeral, my house being robbed because me and my dogs were out of state for said funeral, a series of major medical bills for my father and a few other things..

The son of a bitch shot insane a month later.