Reddit seems to have mis detected that you might be a troll :S. Reddit has a cooldown on comments and posts. If you post a few comments, then try it once more, you have to wait some minutes before being able to post again. Some places, you need to have a set amount of karma before being able to post.
Definition: Reddit Karma is the total number of upvotes minus the total number of downvotes that a user has received. Reddit Karma is the total number of upvote... more