The term ‘game streak’ means less if a game allows you to buy a skipped day, but that’s just me. I can see that if you have a really good streak like over thirty days that missing a day could be soul-crushing. I have been using Duolingo every day and now have a 30 day and counting streak. I have gotten out of bed at night just to keep my streak alive. So I get that streaks ae fun. I guess I’m just old-fashioned that I don’t want to buy to keep a streak going.