(This means when people sign their comments they are more likely to end up with a link to their personal page, as they don't have to remember to use the [[name]] syntax.)
1. Add the new variable $FreeUserNames to the Configuration 'use vars' list.
2. Add the following line to the end of the 'Major options' section and optionally to the config file:
$FreeUserNames = 0; # 1 = spaces in username, 0 = LinkPattern only
3. In function DoUpdatePrefs, change every occurrence of $FreeLinks to $FreeUserNames. There are three of these - one on the line after GetParam("p_username, "") and two in the elsif statements below this line.
4. Optionally - change the text in DoEditPrefs on the line after GetFormText("username", ...) to something closer to what you're expecting. e.g. Mine reads 'use FirstnameLastname with no spaces'.