Because patents are now used as an offensive thicket and a way to parasitize businesses that actually do something.

Intellectual Ventures is one of the more notable patient troll companies: https://www.techdirt.com/2016/03/31/stupid-patent-month-mega-troll-intellectual-ventures-hits-florist-with-do-it-on-a-computer-scheduling-patent/

ihttps://www.techdirt.com/2012/12/20/intellectual-ventures-dont-mind-our-2000-shell-companies-thats-totally-normal/

Yes, someone please come free us! I am being held hostage by Windows and Autodesk Inventor.

In my case, Inventor and AutoCAD. I hate AutoDesk with the fury of a thousand suns, but FreeCAD just isn’t stable enough.

Oh, and currently needing .NET automatic source generation (long story), which is very difficult to develop on anything other than Windows.