When someone posts content to Reddit under the Reddit terms of use they grant Reddit a license to use and distribute the content but ownership rights of the con

When someone posts content to Reddit under the Reddit terms of use they grant Reddit a license to use and distribute the content but ownership rights of the content remains with the poster. If you scrape Reddit and post the content in theory you open yourself up to copyright violation claims from the original poster of the content. The odds that someone is going to sue you for redistributing without permission content they posted to Reddit is likely extremely small but it is not zero.