system
A chat on subreddit /r/wallstreetbets
human
Sort of... but buying stock is supposed to support the company with capital they can use to invest in equipment, people, and other resources for growing the business.  The idea is not to buy something you believe has no value and hope a bigger sucker comes along to relieve you of it.

gpt
Only the first guy actually supports the company with his investment though (assuming he buys the shares at IPO). Everyone else is just holding shares of the company and money changes hands between private buyers. 
  
 Keeping the share price high may somewhat help the company in doing future capital raises, but the average retail investor will have no affect on the stock price.