Essentially what I was going to say. It is perfectly fine to bring these
topics up but you have to pick the right situations.
That said some times there will never be a perfect time and others aren't
always keen to listen to a new point of view. I bring it up when relevant in
various Windows/Apple websites but I don't push to heavily. Just putting the
message out there in a simple fashion can be a huge help long term, it plants
that seed of doubt in their current situation and another seed of intrigue.
I admit that personally the switch to free software wasn't over night and it
was from others slowly spreading the word in other forums that started me
slowly on the path. Those that started big angry debates generally worked
against the cause as it made the position look extreme - it was the more
generalized simpler approach that did it for me.
