You'd think that after the genetic manipulation of them in the #ShortTreks episode, they'd at least put a Captain's Eyes Only notification similar to the #OmegaParticle warning from #STVoyager in the system, so that whenever Tribbles come up in a report, they'd be informed on a need-to-know-basis that Tribbles are to be avoided because they can quickly overpopulate a station/ship...

But #Kirk et al were all unaware of them and their risks...