Better buying karma points first (commenting karma) than your account is karma loaded , you can do posting and commenting in your niche subreddits about your niche so you will not get rejected. But be aware redditors are weird people, when it comes to marketing, marketing clients, Linkedin, coaching and that stuff, they're are very reluctant , sounds like communism antifa people or something weird.
They now hate Linkedin because so many people posting , sharing content and videos, WTF? They want it be "genuine" but these people themselves are not geniuses. It's weird I done ten different comments a question which type of content will make prospects respond to you? I got only 1 answer from ten comments.
They not give you commenting karma. Better stay away from these weird silly people.