[Calash]

Then problem is that using a mod like this becomes a commitment. Once you have users who have joined via this mod it becomes very difficult to step away from it without abandoning them. A required email address would help as it would allow people to request password resets.

It does not need much work to get it to a usable state. Some path tweaks to the java and code will net you a running script. Better use of templates would go a long way to being more portable. The number field edit clears up a lot of the template issues and, IMHO, should have been the top priority to fix to add immediately once resolved.