Reddit has become a massive content machine, and user engagement is at an all-time high. There are a few reasons why we're seeing more trending posts:

it's important to remember that not all trending posts are created equal. There's definitely a growing trend of services like SaaS https://openmarketing.studio/ that offer businesses a suite of tools to manage their Reddit presence, including tracking trends, analyzing sentiment, and even (controversially) influencing post performance through upvotes, downvotes, and comments.