WordPress and Craigslist Death Policy: How to Delete WordPress and Craigslist Accounts
WordPress
There is no way to delete a WordPress account. WordPress advises you to just simply leave the account inactive, it will not be used in any way. However, you may want to sign in and just erase all of the content to have a similar effect of deleting the account.
Notify WordPress of user death
Craigslist
There is no way to delete a Craigslist account through the account settings. However, if the account is not logged into for a long period of time (about 4 months) the account will be deactivated.
Notify Craigslist of user death
