I'm guessing you don't have young kids? I say that because if I want to watch any R rated content (like Bojack Horseman for example, which I did last week), the only place I can safely do that is in my office with headphones on, since the toddler tends to creepily sneak up on us in the middle of the night after climbing out of bed.

Due to DRM it's the only (legal) way I can watch it on my computer.

You can download the app.

Only if there is an app for your OS that's up to date.

More importantly, I'd prefer not to use the netflix app/site at all. I'd much prefer to pay for content and have a variety of apps to choose from.

Who doesn't?

If I'm on my computer as opposed to a mobile or TV device, I use the browser. It's not as often, but I definitely have done so, even within the past week.

I do all the time, although I do it in a separate window with all the browser chrome hidden (and usually maximized to a side monitor anyway).

Me. I'm on my computer 50% of my day. I have it handy the most often.