You cannot play Diablo 2 resurrected after 30 days of being offline
I know folks on this site don't like it, but in the wider gaming community, there is essentially no demand among legitimate buyers for an always offline gaming option. We have access to the internet almost no matter where we are, or can easily get it. Why should we care if a game needs to check in periodically? What harm is it likely to do to any given legitimate buyer?It's almost certainly worth it to Blizzard to lose the tiny fraction of sales from people who care about this issue to prevent the buy-offline-return pattern that some folks might opt to use without this check in place. Yes, it won't prevent all piracy, but it's probably a net positive for revenue.