But the issue wasn't kerning. There was a space between Do and It, kerning is how two letters look next to each other.

Keming is also how two letters not adjoined to each other look like they are.

I've never heard it used that way but it makes sense. Thanks!

I also think that at the time computer users may have been used to dismissing extra space around letters, since the computers they commonly interacted with would use monospaced fonts for technical reasons.