There are a number of really good articles out there describing the various techniques used to copy protect floppy disks for the Commodore 64, Apple II, Atari 8-bit and ST, and the Amiga. Some of these articles are written by the people who developed the techniques, some are written by the people who cracked them (in both admiration and derision.) Many more are written by preservationists and the uber-nerds who work not with ones and zeros but with the magnetic flux capacitor Delorean domains which contain them.
These schemes led to a plethora of programs and product series bent on allowing home users to copy their disks for "archival" purposes (wink wink, though, I promise, that is exactly what I did,) like, for the Commodore in particular, Fast Hack'em, Maverick, Kracker Jax, and -- my first -- Copy II/64, etc. and some hardware enhancements like the RAMboard for the 1541 and 1571 drives which could buffer an entire raw track. Wherever there was protection there was something to break it.
Was the TI out of the game before swap parties and pirating fever over-took home computing? Was copy-protecting floppies ever a real "thing" for the TI? If there was such a thing, are any of the schemes known and documented?