Perihelion does not store any personal information - however, it can store options & preferences as defined by you, as well as user generated content.
Some of this is automatically anonymized by its purpose - random text strings, for example. However, stuff like user settings and wikis aren't fully anonymized.
This data is not deleted automatically, since it's not personal information (and, you probably want to keep your preferences anyway)
This data is stored in the United States.
This policy page may be changed at any time, however you are entitled to be informed through the "Rollplayer Central" discord server, in the "bot-announcements" channel.
If you want your information deleted, contact @whirlingstars on Discord.