Originally Posted by Observer
No, not a chance.
One thing I've read is that even when a person tries hard to disguise their writing, literally using a different hand, or constructing letters in a different way, they still
manage to give glaring clues away of their identities.
Another thing a person tends to do when disguising their identities when writing is to revert back to their own style partway through without having realized it, which is why experts tend to start from the end of a text and work their way back, and this is something that was echoed in the recent H.H. holmes show on History by an analyst studying the "Ripper letters".