Don't mind them—there's a certain subset of HN that is upset that web tech has taken over the world. There are some legitimate gripes about the performance of some electron apps, but with some people those have turned into compulsive shallow dismissals of any web app that they believe could have been native.
There's nothing wrong with using web tech to build things! It's often easier, the documentation is more comprehensive, and if you ever wanted to make it cross-platform election makes it trivial.
If you were working for a company it might be worth considering the trade-offs—do you need to support Macs with less RAM?—but for a side project that's for yourself and maybe some friends, just do what works for you!