This new post from @joost.blog explains how #WordPress uses comment cookies and why that is detrimental to your site’s caching. It then shows you how to fix this.
@davidbisset the mention isn't correct it seems :)
@davidbisset Most caching recommendations would bypass the cache altogether when commenter (or logged-in user) cookies are present.
Everyone else would see a correct (i.e., anonymous), cached page.
Sure, you’d get a few (but not many) more uncached requests, but I don’t think you’d *really* notice in practice.
Anyway, kind of surprised to read “that Cloudflare was caching the details of the last commenter on a post.”