which only really took off in the 2000's when companies like IBM started caring.
Correlation is not causation.
What I lived through, was Linux taking off like a juggernaut, and IBM embracing it as a result. Large corps came along for the ride, they didn't drive it and at best paid for some gas.
DEVs being paid is simply what it is. The entire scsi/sata stack was originally re-authored by 3ware for example.
Why?
To sell stuff, and the guy was an advocate too.
It's always been this way, under the great wonder of the GPL, blessed be it.
It was so relevant that even Wikipedia discusses this, we were using Solaris, HP-UX and Aix for actual production deployments. Linux was our MP3 server.
Meanwhile every startup in SV was using Linux, Facebook was using Linux, Google, and everyone in between. This was early 2000. It had immense momentum without big boys like IBM coming in (and IBM was massive compared to Google or Facebook of that day).
FreeBSD 4 was big in early 2000s.
Yes, yet it was. There were the BSDs, some more popular than others. A lot of the time, especially back in the earlier days, stuff was more regional.
There certainly were mailing lists, usenet, forums, all of an all-encompasing scope. But there were also very local user groups, and pockets of wildly more and less usage depending upon region. The Internet was young, and many made decisions predicated upon what they saw around them.
The best way to be sure you had support, was a local healthy community of hackers around.
Really? Every single one?
You must have a good source of information for such a statement.
Do you want examples why Solaris was selling so well before the .com crash?
There are several 'early 2000s' after the .com crash. Linux growth was phenomenal, and as tends to happen with growth, starts with smaller market share.
There is no conflict in "linux was growing without the big boys' and 'it started with small market share'.
And yes, you can find exceptions to the rule, although regardless, do you see me saying "exclusively"? What does someone using Solaris, have to do with Linux only growing due to external help?