Using AI to correct your grammar is not any kind of cheating to the forum. The one I see as cheating is having AI to make posts and reply for you in the forum while putting on a paid signature.
There are translation tools which can be used in improving a users writing and never have the forum stood against it's use, but having to use AI because it wether or not you're in a signature paid campaign is absolutely prohibited in the forum. This is some to promote originality of thoughts among users. To help make the forum still have a natural embodiment in its discussions.
I just had to lay emphasis on this because, some newbies might read this and assume that it's only when you're wearing a pair signature then that's when the use of Ai is frowned at or considered cheating.