No, karma on Reddit isn't actually worth anything. Karma on Reddit is just a measure of how much you've given to the community. You can only give or receive karma amongst other users, and it serves no purpose other than to make your account feel wonderful when someone returns the favour!

• Become a member of one of the most popular Reddit subreddits.-Millions of people frequent large subreddits like r/funny and r/pics, so if you publish something that they appreciate, you can earn a lot of Karma just from that one post.
• Make a list of things that are amusing or unusual.-This may seem self-evident, but in order to be noticed, your content must be noteworthy. Memes with viral potential, as well as uncommon and entertaining photographs and videos, are definitely your best bets.
• Discuss Current Events -On Reddit, there's always a heated debate going on. If you have something to say on the most recent hot news, there's almost certainly already a thread where you can express yourself.

Read More: What's a good way to build up Reddit karma?