After moving to Oracle Cloud to use their Free Tier for my personal blog, I got this email from them back in April, basically requiring me to migrate to pay-as-you-go since my blog had near zero traffic. To be fair, I'm perfectly fine with this and happy to still be billed $0 per month. But it just set the perspective that Oracle wouldn't blink an eye to kill my site off if its PMs or lawyers thought they needed to revisit a subscription plan or usage terms - and I'm not saying that it's any surprise to me.
> Oracle Cloud Infrastructure (OCI) will be reclaiming idle Always Free compute resources from Always Free customers only. Reclaiming idle resources allows OCI to efficiently provide services to Always Free customers. Your account has been identified as having one or more compute instances that have been idle for the past 7 days. These idle instances will be stopped 7 days from now. If your idle Always Free compute instance is stopped, you can restart it as long as the associated compute shape is available in your region. You can keep idle compute instances from being stopped by converting your account to Pay As You Go (PAYG). With PAYG, you will not be charged as long as your usage for all OCI resources remains within the Always Free limits.