That was a shitty reply with paternalistic attitude. The kind of fundamentalist attitude which alienates people from some communities. I use Linux and FOSS exclusively since decades, but if I happily fire up a VM to use some CS software that is only available for Windows, if that allows me to do my job better or faster. I don't need some stranger in the internet telling me that my workflow is broken because of "principles". These people better stay in my block list.