It can be good to have same visibility of what you have for example on Mac OS FontBook:
more complete naming, license,
+ panose, foundry code
Specially because converting to another format is generally not allowed by the licenses. So its a crucial info who should remain non-editable,
TransType user should be informed of what he doing?
Even a non intrusive code should be added by TransType on one of the fields copyright, description, license, or version? "TR4conv"