Hi Suresh,
It's my Northern California Surfer upbringing. As a
child we used "OK" to mean all of the following,
Good
I understand
I agree
Lets start something
In this context it is sort of a very lazy way to say a
greeting and start a new conversation thread, but I am
not sure I even know what it means but here is a try
at what I was feeling when I wrote it.. "Hello all
good friends who understand things"
Aplogies for not being clearer and using fuzzy
thinking.