@Japh points out:... You get different results if you search for “ThemeForest” ...

I've been spoiled by Google Search, and Firefox Find. I'll make a good review of the 26 plugins for ThemeForest & Envato.

... [W]e’ll shortly be implementing a new set of requirements for themes on ThemeForest ...

And that post about those changes went up a month ago: Envato & ThemeForest have had their sleeves rolled up for awhile now.

From that post:In the future [after implementing new requirements for new themes on TF], we will be actively working towards library re-reviews to bring the library up to these new standards. - [emph. added]

Ah yes, excellent. This what the natural tendency toward rot & noxiousness requires.
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ThemeForest & Envato are ultimately a good thing, for WordPress, on several counts & levels. Their presence & success on the scene is an asset for WP. By properly hoeing the row they've chosen, issues can be tamed and their value increased.

Thanks Japh!