Yeah I find it interesting that HN's love of performance seems to overpower their love of security. Especially since nearly everyone here has better hardware than average people.
I do not enjoy running random strangers' Rust on my machine unless it's sitting in a VM and probably also a container, at which point the performance benefit is gone anyways.
I recently moved all of the desktop apps I reasonably could to browser tabs and have been quite happy with it.
Oh and don't forget how easily you can modify the source. With a simple user script or extension I can modify your website to behave exactly how I want it to without recompiling.