What will be the consequences though? I'm sure they can easily discover that the user is trying to overwrite his history, batch edits are easy to spot - but what will they do about it? Ban him & delete his data? Stop him from editing his own posts? Just throw away all changes that don't pass the smell test?
I would speculate that they have built systems in a way that it would not matter what any user does. any edits to a already existing post probably just append
