I had a sex change, joined The Church of Scientology, and moved to Moscow.
The site does not delete accounts nor content in these situations, however your account can be disabled. All posts and encounter reports will remain in place as well as your handle, except the words "Account Disabled" will be the title of the account.
In order for your account to be disabled, the admin staff requires you to state a legitimate reason for leaving the site. All you need do is send a PM stating a legitimate reason for wanting your account disabled and I will make the request of the staff to handle the arrangements.