We're seeing many questions about this! YouTube & YouTube Gaming subscriptions are merging, so videos from channels you're subbed to in Gaming will now show in your main subs feed: https://goo.gl/zfgfC4 If you think you’re seeing something else, please send a feedback report!https://twitter.com/FNecroShade/status/976850532626321411 …
because even if you never used yt gaming, it keeps your subs on that site, even if you unsubbed