1. A method comprising: detecting that a text string is subject to an algorithmic function that would modify one of more parts of the text string to be at least one proposed text substring for presentation via a user interface, wherein the at least one proposed text substring is a portion of the text string; evaluating the at least one proposed text substring against one or more prohibited text strings prohibited for presentation via the user interface; detecting, in response to the evaluating of the at least one proposed text substring against the one or more prohibited text strings, that the at least one proposed text substring is one of the one or more prohibited text strings; and modifying the at least one proposed text substring, in response to detecting that the at least one proposed text substring is one of the one or more prohibited text strings.