Why is the word 'interrogation' (appears at least twice) interleaved with unprintable characters?

For some reason, the author chose to imitate a "strikethrough" text effect by following each letter with "U+0336 COMBINING LONG STROKE OVERLAY", rather than just using the <s> HTML element.

They survive format changes. If copied and used as plain text, the meaning does not suddenly change from a joke to an ominous "interrogation consultation room".