Comment by II2II
For the FSF, Microsoft releasing binaries without source was reason enough to hat them but it was not the only reason why people, including those in the FSF, hated them. Microsoft was very much a company that used their dominant market position to lock customers in and the competition out. (Remember embraced, extend, extinguish?) The Microsoft of today looks like a cuddly teddy bear in comparision.
Microsoft's motto then was "We set the standards".