[muawiyah]

Still, in the end, it's obvious that the forgeries are forgeries because they exhibit signs of "kerning".

This capability simply did not exist in 1972 on any typewriter.

Did not exist.

It's different than "proportional spacing".

[Diddley]

Those are among many other points that show that the documents are fake.

That they would try to prove a small point (the superscript th, for example,) just shows how gullible and ignorant they thing most people are.