I am very sorry you are perceiving it that way, as I already stated we have a different opinion on the benefits of discord and will do our best to make the transition to it as easy as possible.
When I was in business, my Customer's Opinion, was immeasurably important. I would never have been as cavalier and as dismissive of my Customer's views.
You have already shown how well you respect your customer's by making the move before making any worthwhile attempts to tailor Discord let alone actually implementing a working solution. It is, business wise, foolhardy to replace a working solution with an embryonic substitute.
By jumping in with both feet and trashing what you currently have you have, without a doubt, proved one thing:- You WILL NOT "do our best to make the transition to it as easy as possible" because you have already failed dismally your own test by implementing the change prematurely.
Discord, does not offer, and by it's very nature, cannot provide an environment conducive to constructive, considered and measured comment with such a large number of users. You are conflating two different and incompatible mediums. You are also saying to your customers that you do not care that the only way they will be able to make constructive comment is by using the chaotic, unsafe medium of Social Media.