It is a website for his own wedding offering a chance to learn something. I don't understand why there is a need to be pedantic about things like the JavaScript only in this context. It is a reoccurring thing on HN and it doesn't invite us to have a good discussion about the dependency to JS. There is also no need to compare it to yourself. It just comes off very self centered. I understand that in many cases you might not need a certain technology but if there is a fun opportunity to learn a certain thing and using it has little to no harm, why not?