Problems with understanding jip and locality

[RogueTrooper]

I am confused by the results of a very simple MP test map.

* two playable soldiers placed in the editor: named player1 and player2
* in the init line of player1: [1] exec "start.sqf";
* in the init line of player2: [2] exec "start.sqf";

start.sqf looks like this:

_value = _this select 0;
~_value
hint format ["%1",_value];
exit;

The delay is there to be able to get two different hints, since a hint does not expand a previous hint, but edges it out.
I'm testing it on one computer with two instances of Arma, which allows to join a LAN-server with the same ID.

Mkay, here it goes. It may be a bit confusing at the first glance, but it is very simple at all:

When I start the server (not dedicated, look above) and enter the world with as one of the soldiers and the A.I. is ENabled in the lobby, then of course I have this result:

one second after start I see the text "1"
two seconds after start I see the text "2"

So far, so fine. Everything is clear to me.

Then I start another instance of Arma and join my first instance. In this second instance I select player2 in the MP lobby (player1 is occupied, of course).

Question 1: While I am player2, that joined the server that is already running, I only get the hint "1" on my screen. I rather would have expected to see hint "2" ONLY. Why does player2 see the hint of the player1-init-line, which is not local for player2, but does not see his own init-line-hint?

When I 'jip' the server as player2 (player1 is the host) and the A.I. had been DISabled in the MP lobby, then I see hint "1" and one second later "2".

Question 2: Why does a client, that joins later by JIP, execute the init-line of a unit, that is not local to the JIP'er?

All this is so confusing

PS. This setup has no real purpose and is just there for testing and understanding.