A Turing complete language executing unsigned code in a sandbox that allows HTTP and HTTPS requests to 0.0.0.0/0 and ::/0 is not something everyone wants in their life.

I run noscript without any whitelist at all, and considering how popular noscript is I doubt I'm alone here.

It makes the modern web so much more pleasant, paradoxically by breaking it, now that user-hostile machinations are the norm.

And yes, gitlab's web interface is substantially more annoying than github, in my experience.

It's not a hard sell, but it is certainly an inconvenience. I prefer to browse with javascript off by default and only enable it for sites that absolutely need it. I've had issues where sites using JS have caused a single core on my laptop to spin at 100% thus affecting battery life negatively.

In some cases "I'm browsing GitLab" might be the exact impetus for someone's attempt to disable JS. As noted above, GitLab is sluggish. I was an early adopter/advocate for GitLab, but you can feel the bloat on every page and I no longer use it.