“Honestly, I would prefer all themes with upsell to be filtered out into their own section of the directory, so it’s clear to visitors what themes are free and what themes are ‘free,’ Norén said in response to the discussion. “It would also reduce the incentive for theme shops to flood the directory with crippled themes.”

I think the same goes for plugins, I’d prefer that all plugins with a premium or freemium option should be shown in their own category/directory.