A lot changes between times, too. Decades ago, those of us who did computer "stuff" in places like the Bay Area were typically nerdy science/math lovers who were an unfashionable segment of society with hobbies like ham radio, astronomy, homemade electronics, science fiction, math competitions, etc.

Meetups like the West Coast Computer Faire, little shops like Weird Stuff, amateur radio "hamfests", astronomy clubs, and so on were everywhere. Programmers knew how to use soldering irons and slide rules. Tech companies were rounding errors compared to, say, car companies.

But the intellectual fashion enforcers with wealth and power that tech companies are now, with tools to make society submit to their will are not the culture we were. Like Wall Street before them, they have bigger plans than ordinary, little people with their quaint hobbies. So even though we pocket protector and slide rule types still exist and can form a quorum online, the in-person meetings mostly (not entirely but mostly) vanished back in the dot-com mania.