@Frank Apisa,
While your concern is good and all and placing a thread inquiring as to where he might be is touching, I'd prefer it left at that. If he is lo n a sabbatical then he may return. If health issues have arrived, he may return. If he has had a fit of rage against a member here or many members, well, he may return.
OOr may have left us forever, by choice and may even be monitoring this thread to find out if anybody cares.
Hopefully whatever is going on isn't dreadful. Beyond that it is his decision to inform or not.
THAT, Frank is the other thing
You want all of us to have a Contact or a few contacts who will come here and say what is occurring.
For me at least, that is not happening. Several times I have exited for (mostly) health matters. I value my privacy and do not give information to friends and family about my Internet interactions. A few over the years have been told by me that I'm on this site; however, they don't know much beyond that. I'd like to keep it that way. Haven't offered up my personal contacts to anybody here either or given their info to any member here. No plan to do so. When the time comes, if this place is still operating, I will "disappear". You can then all use your imaginations to figure what happened. If alive and able to communicate I will likely do so. Other than that, it van remain a mystery. There are a few here who know my full name and so if an obituary were written for a paper, and it was Internet available then you might find out.
Life needs mystery to become it's most exciting and thought provoking. That may in the end be my legacy. I can live (and even die) with that.
Each of us is allowed to make our own decisions, that hopefully will never change.