Oracle reclaiming some free tier compute instances

Looks like Oracle is going to shut down some compute instances for free tier users. From the announcement email:

"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."