Come on now. I&#x27;m sure the commenter knew you could search the subscriber list when new comments come in. I think the real interest was in how Grossman may have optimized it for CPU or memory efficiency. I was curious myself given it&#x27;s easier to keep sites like this up if they take almost no resources to run. Some low-power, disposable box or extra CPU cycles on an existing server.<p>&quot;It&#x27;s the kind of small scope and easily defined project that&#x27;s great for learning a new language.&quot;<p>I totally agree with that. Matter of fact, I was planning on implementing that exact project to learn Rust or Go. :) Might still do it as it remains a good learning experience, esp for stuff you use 80% of the time.