With this statement you’ve now shown that your site doesn’t take contracts seriously and opened the door to people arguing future contacts are also invalid. I’d delete this response asap.
What? This person made something, we pointed out an improvement and they said they'd change it. You're literally complaining that it wasn't perfect already, and thus they somehow don't "respect stuff".
Sorry, who said “respect stuff?” I don’t see what you’re quoting. And who is “complaining?” I will just restate the warning, admitting that you’ve auto generated terms, didn’t know what was in them and forced everyone to sign them invalidates all terms of the current contract and gives ground for future disputes on completely new contracts. So… I’ll reiterate my recommendation to delete the post. This seems to have stuck a nerve with you so I’m not looking to get into it beyond that.
Why? They can change the policy and ask for a confirmation, as every service out there is already doing.
How and when have you seen it happen that a contract was invalidated by one party indicating that they would prefer a more appropriate contract?