The RemoveAngleBrackets setting is one of the AppSettings
that is contained in the web.config file.
The RemoveAngleBrackets appSetting value is read in a few locations in DotNetNuke when it is determining the behaviour of particular InputFilter
filtering actions. The setting itself simply strips angle brackets, and does not provide any additional security as the core already encodes the angle brackets to ensure data is sanitized i.e. no html or script injection is possible.
The setting itself was added on the request of a major user to meet internal criteria - it's default is false and it's not invisaged that anyone other than this particular user will ever set it to true.