Siddharth, a member of the Envato team, shared on their Notes blog that stricter policies are on the way for authors submitting WordPress themes to their ThemeForest marketplace, specifically regarding deprecated functions.
Deprecated functions, if you’ll allow the quick explanation, are those functions that the WordPress core developers send to the proverbial graveyard with each major release. These functions are no longer recommended, and are usually replaced by something more useful and more future-proof.
Siddharth said that while their policy toward deprecated functions is “a bit lenient at the moment”, this will change. He said that “[they] only dock an author if the tag being used is too old and has a completely better alternative,” but that in the future authors will be required to use only current functions within their submitted themes.
For the developers reading: do you find yourselves using deprecated functions often, or do you police yourselves well? For those out there regularly purchasing themes: how important is the use of current functions to your buying decisions?