In posts, yeah, but not in comments (if there is an image in the comments).
2 points
I got what you meant, it works for me on Jeroba. Tapping on the image, in comments, brings up the image viewer and you can zoom in/out.
3 points
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OK, let’s test.
Nope, tapping the image just collapses the comment for me.
2 points
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I’m on jerboa, tapping the image opens the image for me, not collapsing the comments.
Long press opens the image too as soon as I let go.