Remember when people were selling COM objects in Dr Dobbs journal ads for Visual Basic in the 90s? I think it's the same culture (and partially people) that has been bought over to the .NET world via VB.NET as it was always touted as the stepping stone.

Nothing has ever forced anyone to depend on commercial libraries, there has been some upsets as people has closed-source previously popular opensource libraries.

But in the end, sometimes it feels like open-source in general is just waiting for a Jin-Tia moments everywhere, if people go commercial to prevent that happening that's just an indication that we've failed to create alternative ways of _living_ that can support open-source (this is probably most damning on companies that prides themselves on building on-top of opensource).

Heck, remember that tjholowaychuk created tons of (some popularly still used) npm packages early in the Node.JS lifecycle before first moving to go and then abandoning open source altogether.