Jesus fucking Christ.

Do you always have 0 input?

No but we should criticize eachother. That's part of how we develop as humans. The sad part is most people can't accept criticism and use it

Exercise more and eat healthier

Oh.

same can be said about any health issue.

should flame smokers and drinkers too

Bad examples. Smokers are punished by paying high taxes on cigarettes, they aren't aloud to smoke in most places and are criticized by people constantly about their habit. Drinking has a legal limit and being an alcoholic will have a negative impact on their life in both relationships and health.