You cannot create Droplets in certain datacenters due to limited capacity. If you have snapshots in a limited capacity datacenter, transfer them to another datacenter to create Droplets from them.
You cannot downsize a Droplet from a snapshot. Data is not always stored sequentially in memory, so reducing the size of a disk can result in data loss or corruption.
Snapshots of Droplets are a best estimate based on the disk usage. Snapshots of volumes operate at the block storage level, so the snapshot size may not match what the filesystem reports.
As a temporary workaround, new DigitalOcean users who begin with team account can transfer snapshots to other users via teams instead of directly via email address.
Snapshots do not retain the IP address of the Droplet they were created from, but you can use reserved IPs to assign the same address to new or redeployed Droplets.