Reddit has by far the worst antibot protections of all the major social media sites. For starters you can register with an account using a mobile API endpoint with no email or captcha at all and the only reason this isn't widely used is because they have a request signing scheme that deters the lowest effort botters. As long as you're not posting newly registered domains from an IP address labelled as a Tor exit you probably won't be banned. If you search for terms like "payday loans" or "sbobet" and look at the account history of the posters you will see the most robotic stuff.