I don’t think I’ve ever had the Hide NSFW function working

TBH, this is a good image to show another bug, where you can’t swipe an image away without pinch-zooming out first. As if you’d pinch-zoomed in in the first place.

It is, I just got it :)

You can do it in-app too. Click on the username, then hit the three-dot menu at the top right. “Block User” will be an option.

Try the latest version from the App Store - should fix this