Taking over someone else's discussion with your own topic — the thread hijack — as the forum's oldest discourtesy, and the record's entry for the conversation that was about printers and is now about a divorce. 'Sorry to hijack, but' is the confession that precedes it.
Correction: the source line credits the wrong place. It was already circulating in a smaller community before the platform on file picked it up. Attribution follows attention, not origin.
The record notes the thread hijack survives on every platform as the reply that is about something else, and that the record's own comment sections are, at this point, entirely hijacked.
What does it mean? Write it the way you would say it out loud.
