Comments are helpful to get feedback and fix typos on my posts, but I turned it off on my blog after over 100k comments approved manually in the last 20+ years

Comments are helpful to get feedback and fix typos on my posts, but I turned it off on my blog after over 100k comments approved manually in the last 20+ years because of a spam issue. I got 400 spam comments per minute despite using the paid version of Akismet and keyword block list on a self-hosted WordPress blog.