Only if you are comfortable using a 3rd party comment service (or injecting 3rd party javascript in your site in the first place). I know it's common, but even with the advances in CORS and whatnot, it still (IMNHO) defeats a lot of the benefits of a static web site.
That said, I would probably prefer embedding disqus or https://muut.com/ comments to running a complex php application just for comments.
That said, I would probably prefer embedding disqus or https://muut.com/ comments to running a complex php application just for comments.