Homie I didn't just stop drinking soda. I went vegetarian for two years, work out every day, and started working a physical job instead of from home. I have a diet that is actually very easy to maintain, and I recently started eating fish again to ensure I'm getting more protein to gain muscle.
Thanks for the long response, but telling people they won't keep off the weight or that their changes are not sustainable only makes you sound like a jackass.
If they're just saying that, I certainly don't want to be around them but I don't think they should go to prison. If they act upon that, that's entirely different and should be treated as a hate crime.
Also, you just said it. Does context matter to you? What about intention?