Given their recent posture and actions, I would think yes it could be an issue for you, for sure. You’d want to check their terms of service as it may violate them. If you’re doing this for fun, add a step in the middle and get ChatGPT to rephrase every post to obfuscate their source :-)
I think the lack of sense of community occurring from both the increased size of the group and how long it’s been around lead to folks taking it for granted as a resource rather than a personal space they’re invested and involved in.
I think the same thing happened to Reddit overall - it reached a mass of size and establishment whereby the owners/admins were disconnected to the personal, special aspect of it and took it and the people for granted.