Richard - each to their own.
We know exactly, I mean exactly how many mac users are on PPRuNe each moment of every day. This forum is (mute) testament to how effective users find them.
Setting aside the powers tuners, speed demon aspect of this forum consider how many times you have ever seen a problem or query on any of the common day to day themes here?
There are a significant proportion of PPRuNers who get something very special from a mac - it works and they aren't troubled by anything on the stickies at the top of this forum - or within the rest of it.
This is very valuable to them and they respectfully ask you to stop publicising a system which remains free of the plagues the rest of you suffer.
Regards
Rob