Just of curiosity, I checked the site and I found that there are 20 posts (4Q, 16A) contain spelling "Kiev" for Kyiv, the capital of Ukraine.
According to UNGEGN (United Nations Group of Experts on Geographical Names), the only possible English-language transliteration is "Kyiv".
The same source confirms the proper spelling for Donets'k, Luhans'k, and several other toponyms mentioned in posts at Politics.SE.
I quite realize that "Kiev/Kiew" used to be a widely popular Romanization during the times of occupation, and many people around the world are familiar with this incorrect spelling.
I also realize that mass edit is likely to:
- "bump" the respective questions on "Active Q's" tab;
- trigger overreaction by users of erm, a certain affiliation, and
- unlock the "unupvote" feature for some answers
How do I correct the spelling without triggering the side-effects I worry about?