system
A chat on subreddit /r/wallstreetbets
human
Ricky Gutierrez. He basically copied his swing trading style with DGAZ and UGAZ and it was working for a time. I don't recommend copying investments though.

gpt
DGAZ and UGAZ seems to be what his followers mainly trade at least according to Ricky's discord room. I check it every now and then and every time, those 2 stocks are mentioned that day.