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by jsmith45 2116 days ago
That layout is reasonable common in at least one scenario: A list of tags with wrapping. If something supports a large number of tags and the textual content of tags can vary significantly in length, then thewy will usually be sized to fit.

On the other hand, that layout hardly needs flexbox, since inline block elements will wrap in much the same way. The vertical equivalent of that layout however would very much require flexbox. However, I'm not sure of the use cases for that.