No captcha?

Hello,
I am learning programming and just discovered this website. But I am curious, how does it protect its users from spammers (people who post illegal or annoying things) without a reCaptcha? I thought clicking this blue box is required to prove that you are not a robot, can you please share any javascript that you use for this purpose?
Thank you and have a nice day,
Brian

>>161
I appreciate the information but we don't all recognize acronyms of pieces of US legislation instantly. I would have gone with "nobody" >>158 in that case.

https://en.wikipedia.org/wiki/CARES_Act
The original CARES Act proposal included $500 billion in direct payments to Americans
The spending primarily includes $300 billion in one-time cash payments to individual people who submit a tax return in America
The original CARES Act proposal included [...] $208 billion in loans to major industry, and $300 billion in Small Business Administration loans.
The spending primarily includes [...] forgivable loans to small businesses with an initial $350 billion in funding (later increased to $669 billion by subsequent legislation), $500 billion in loans for corporations
Introduced [...] by Joe Courtney (D-CT)

Checks out.