Joined because I love moving where I do- I do miss the UK too, where I lived all my adult life and where my children and grand-children are, and so many relatives and friends. Very few expats where I live- so discussing UK life, politics and everyday life is not possible for me in real life.
Mind you, that is very difficult too- as any healthy comparison is read as a criticism - which is actually not the case at all. I'd really need 3 feet, as I have 1 on a daily basis in 3- each with a totally different political system, different infrastructure and legal, educational, etc, systems, different health service, etc, etc, etc. All3 with its inherent faults and advantages- and each considered as 'the norm and correct' by its inhabitants- who in all 3 regions resist any comparison or even consideration of other ways of doing things- be they better or worse.
Makes for an interesting life.... that is for sure.