This is such a strange concept. Like fundamentally a subscription is just a mechanism to allow a viewer to easily keep track of new content on a channel. By viewing the channels contents you're engaging in 100% of the interaction you should be expected to have with a subscribed channel. If Google really wanted to address the problem of old subscriptions people are ignoring they should just prompt people to unsubscribe to channels that they haven't watched any videos from in a long time. Instead they're fucking with view counts because that saves them money. The whole thing is fishy, but Google has always treated being inscrutable and capricious as if those were virtues.