reminds me of the shitty email filter the school I taught at back in the late 90s used. It would filter out curse words but it ignored spaces so if you typed something like "push it" is would see "sh it" and delete those letters. It rendered your emails basically unreadable.
Magically aligning a perfect string at a 160 character offset, and somehow have it being a user who would have any idea about what you're discussing? A total non-problem.
"first 160 characters... and then I calle"
"d joe_blow to tell him about the secret company merger"