I'm pretty sure you're wrong with your ALL. Some of the country subreddits I know, /r/France or /r/Belgium, or misc. interests like /r/gardening /r/dwarffortre

I'm pretty sure you're wrong with your ALL. Some of the country subreddits I know, /r/France or /r/Belgium, or misc. interests like /r/gardening /r/dwarffortress are definitely not "gamed by marketers". For those that are about topics that are more easy prey to advertising, competent moderation usually works fine. It's really not that difficult to find interesting and genuine subreddits.