Forum OpenACS Development: Re: Disabling checkbox "Remember login" by default
For the time being, i've added a parameter PersistentLoginDefault to acs-subsite that lets an admin decide the default value, without having to hack the login.tcl file. The parameter setting defaults to the current behavior of OpenACS, so people which are updating and do not want to make changes see no difference.
You're right. A parameter is the best approach that suits better to people's needs.
Plus, the main goal is well achieved with it. (i.e. avoiding changes directly in the source code)