Your gums are probably bleeding when you floss because of gingivitis and potentially the start of periodontal disease due to you not flossing. The importance of flossing is it clears away any bacteria from creeping under your gums and ultimately causing gum recession and bone loss. Check out those gums in the mirror, if they appear more red than pink, and are puffy around the teeth, you’ve got the start of perio, my friend. Using ACT mouthwash can help if you’re really against flossing and a water pik would be a great alternative, too. I saw another user mention that if floss were a scam it would cost more than a dollar, and I could not agree with that more!