Nobody likes legalese so leadership teams just ask legal and ship it. But there's another way, you can just write what you actually want. You can say "we want to be able to use the text content of any post in tool X to train a model".
Yes, you'll need to update your ToS more often if you just say what you want to do instead of "bulletproofing" something forever by making it so abstract it applies to anything in perpetuity - but if you want that, the price you pay is that people will sometimes call you out on it, misinterpretation or not.
Yes, you'll need to update your ToS more often if you just say what you want to do instead of "bulletproofing" something forever by making it so abstract it applies to anything in perpetuity - but if you want that, the price you pay is that people will sometimes call you out on it, misinterpretation or not.