A note on security with the URLPARAM variable: Comments are passed along via URL parameters. They are safely encoded by default to reduce the exposure to cross-site scripting. To preserve user text "as is", and at the cost of security, you can turn off encoding by using encode="off" in the URLPARAM variable. The newline="" parameter of URLPARAM gets encoded with the same encoding as the actual URL parameter. In TWiki 5.0 and later you can specify newline="$br" to add a <br />, regardless of the encoding used.