Not sure I can agree with that, UV.
You're making the assumption that any flight which isn't in a Public CofA aircraft is purely for fun. What if the pilot has a business meeting to attend, though, just as an example? Or, not quite so critical, but maybe you have pax who will be disappointed?
I'm not for one moment suggesting that anyone should even consider flying in conditions when it's not safe. But there's no reason why we shouldn't put a bit of effort into making conditions safe, rather than just binning the whole flight because it's too much effort to use a little de-icer.
(Personally, though, I'd agree with you - if it's an hour-long jolly because I feel like flying, the effort of de-icing probably isn't worth it. But that's only if it's just an hour-long jolly purely because I feel like flying.)
FFF
-------------