I’ve added a setting that allows you to set a seperate time limit for undoing votes:
qa undo vote action window
If this setting is not set, the plugin will use the core undo time limit setting for all post actions as a fallback.
If it is set to 0, the user will always be able to change their vote.
This change is now live on my sandbox, where I’ve set the vote undo setting to 0:
This is quite possible to do, but as I’m trying to not do any new work on this plugin I have to draw the line somewhere I’m afraid.
I’m not done forever, but I won’t be doing serious work on it for a while (i.e. months). I will fix existing functionality if it breaks however.
I don’t take paid gigs (at the moment), but if you do decide you want to fund further development of this plugin, there are some good plugin authors here on meta that could handle it. You could post it in the #marketplace.