Which countries around the World generally do not have tipping?
 

And how it affects the dining service?

In Moscow and St. Petersburg, you are expected to tip. But if you travel to south and far east of the country, you don't.

In HK the service charge is usually added to your final bill so you are not expected to tip.

In France, no tipping in restaurants required ─ everything's included (service compris). Tipping in bars optional but recommended if you sit outside. Tipping in taxis recommended.

No tipping in Japan.

No tipping in Korea.

Not much tipping in SE Asia. Luxury hotels will add on a service charge, but it's pure profiteering, it has nothing to do with the quality of the service you receive.

Its not a requirement to tip in Australia. Tipping is only used to reward exceptional service.

Doesnt seem to impact the experience.

Most consistently worst service in the world (or at least that I have experienced) is in Amsterdam. "Service" included.

it doesnt.

You must be kidding.

How about Alaska? With no sales tax, tipping feels less painful to the consumer. What fraction of the non-US restaurant bills are tax?

Agreed. Though some restaurants have a Tip section appear on the credit card bill just like American restaurants. The service is fine, if they get complained about, they won't keep their jobs long.

No tipping in Japan and the service is much much better than in tipping nations.

Also, you dont have to tip in Malaysia, Korea and Singapore as well. Most Asian countries..

Tipping isn't required outside of the large cities in China, but it is appreciated. In Beijing/Shanghai, the more expensive restaurants will often include a service charge, but cheaper ones that are more frequented by locals don't.