Yeah I totally agree with you points here. If you know someone through online means then it looks close but are not, if you just think that they do not reply on the forums and also the mails then you normally do not have any way to contact him.
In Michael case it is good that people were able to trace him back.
I also feel for some users, they were very active 2-3 yeras back (When I was very regular on CP, just reading not posting much) and now I don't see them anywhere. Like Guffa, Colin Angus, VDK, Vunic, Thats Alok to name a few.
This is true that India did well under him and so many players also mentioned now and then that the approach he took is proving very well for them.
But as he did not want to renew his contract then because of his personal reasons then we should look out for someone who can continue and may be even in a better way.
No doubt is been good since his job, but now he's having HOME-SICK, so he's in hurry to went home.
I hope the next one will be as humble as he, as well as he gives new charge to team India.
I suggest previous NZ skeeper and current CSK coach - Stephen Fleming. He seems as good as Gary K.