It's hard not to get involved in the drama of this game even as a lurker isn't it?
In my opinion, it should never be in good faith to make moves that depend on playing at exactly the last second, because it makes it essential for optimal play to always be logged in at precisely the time when the turns rolls over. Maybe a simple guideline like this could go a long way? I'm thinking of something like in Magic: The Gathering where no matter what you do you always need to give the other player a reasonable time to react, if it is legal.

In my opinion, it should never be in good faith to make moves that depend on playing at exactly the last second, because it makes it essential for optimal play to always be logged in at precisely the time when the turns rolls over. Maybe a simple guideline like this could go a long way? I'm thinking of something like in Magic: The Gathering where no matter what you do you always need to give the other player a reasonable time to react, if it is legal.