Proper operation of such a feature requires parsing the output (i.e. it's not just a simple search-and-replace operation). Support for CSS optimization and aggregation is planned for a later version of Admin Tools. Support for removing HTML comments is not planned and will most likely never be implemented because of the huge performance impact of a full-blown HTML parser implemented in PHP and running on each page load.
Nicholas K. Dionysopoulos
Lead Developer and Director
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