Text Obfuscator is a simple plugin for replacing words and phrases in post or page content and comments with alternative words and phrases. Initially designed to remove names from personal blog posts, it can be used to correct common spelling errors or automatically expand abbreviations.
Each string can be configured to replace text on input saving the modified text to the database, or on output preserving the content in the database as it was entered by the user.
More information and support is available at Flutt.co.uk.