Makes sense, that was during Starfleet's "RA RA HUMANITY!" phase, so maybe they didn't take it seriously.

Maybe that's why Q warned Picard and not the leadership of the El-Aurians. He realized Picard was most likely to take the threat seriously and have the clout to sell it to the Admiralty.

Is the Sisko’s dad as an Admiral? Retired and started his own restaurant!

Mark Twain wasn't in danger of being assimilated at that time. By the late 23rd century, it would be considered a courtesy to warn surrounding systems of the impending threat.

They mentioned somewhere that Cochrane in old age talked about cyborgs, but everyone thought he went nuts.

Sloane had about 45 minutes worth of traumatic interaction with the Borg while also dealing with all the futuristic stuff Picardy dumped on her and Cochrane's was seemingly just ramblings from an elderly alcoholic. I'd doubt anyone from the future left them with detailed intelligence files on the Borg.

Then 50 years later a remote outpost finds something but kinda gets wiped out with only some hearsay from a couple officers. Fledging Starfleet may not have even connected the dotted-line.

But did B-era Guinan even know if it was the Borg who attacked her planet? Or could it just be massive starships just showed up and started wiping out her planet and only long after the fact was it proven to be Borg?

yes, but they were made an unamed species, eventhough we already know. and they were canonizing the fact the borg from tng recieved the signal that was sent during enterprises time period 200 years ago to the delta quadrant.

I dont recall any Borg in ENT and I just finished it a couple weeks ago

Edit: i wrong

Not the worst parents in Trek , or even just Voyager. This is not how "Take your daughter to work" is supposed to go.

These two make Worf look like father of the year.

I like to think that despite his apparent antagonism, Q did what he did in order to save humanity. That by showing us this existential threat, humanity could begin to prepare for it instead of being lulled into a false sense of security and get assimilated.

Or Q is just an asshole.

the Borg didn’t even know about humans until Q showed them the Enterprise and its crew.

The Borg had already assimilated Annika, Magnus and Erin Hansen, so they knew all about Earth.

Doesn't help that the episode aired in '89 and the film in '94.

Seems they wanted an excuse to shoehorn in Guinan with 0 regard for continuity.