In the github release notes for the upcoming July 26 Steem hardfork, it says the following:
"Each root level comment has a reward weight which impacts the end payout of the post. We are targeting 4 posts in 24 hours. Your first 4 posts in 24 hours will not be penalized. After that, they weight is decreased from 100% based on your average posting frequency. Having a frequency just barely higher than 1 every 6 hours will have very little impact, while spamming will be penalized heavily. This change is aimed to increase the quality of content at the cost of quantity."
Can someone please clarify what they mean by "root level comment"? Is a root level comment an actual post (submitted via "Submit a Story"), or is it someone who posts a comment as a direct reply to someone's post?