Some people want to go systematically over the items when exploring. I certainly tend to operate that way, and it’s infuriating when the UI is making it difficult for no good reason.

I guess in that case you can just browse other websites. No website can pander to everyone.

Not sure why you’re being downvoted, it’s true. If you want to display items (normally images) with different dimensions, while respecting their natural height/width ratios, you really have 2 options:

1) Fixed height rows: lower information density (excess white space around some of the items), but easier to scan systematically

2) Masonry layout: higher information density (no excess white space around items), but harder to scan systematically

Nobody is “right” here, it’s simply user-by-user preferences about what you prefer.

It doesn't even make efficient use of space because the size of items depends on their aspect ratio. Fixed size cells is a much more sensible approach.