John wrote:

If Greece will recognise this country as "Macedonia", the next day they will demand from Greece to stop use the word "Macedonia" at all. And they will demand to take all the ancient Macedonia's relics from Greece. That is their official plan. They try to take all of you with them saying that "it is just a name"...

It's 2010. 

Practically, Tito baptised everything over there as "Macedonia". With the extensive use of the name "Macedonia" he aimed in the quick sanction of the term "Macedonia" as an official identifier. So by that he creates:
Meanwhile the other Balkan communistic parties revive their plans of a communistic "Macedonian" state that would allow the access of the communists to the Aegean Sea. Posdt-War Yugoslavia is formed in 1944-1945 by Tito. The problem with Tito's Yugoslavia was that in the South lived a slavic population that was mainly Bulgarian and could create trouble for Yugoslavia in the future. Also the same population, was disappointed by the Bulgarian soldiers' behaviour, during World War II. Being a Croat himself, Tito wouldn't like to retain the name Southern Serbia, or Vardaska Banovina, for that area, because he wanted to limit Serbia's power in Yugoslavia.

Tito decided that instead of naming those people as Serbs or Bulgarians, it would be best to baptise them as "Macedonians", since the communists had already begun something like that before 1940. In that way he would achieve the following:

    Eliminate any connection with the Bulgarians
    Strengthen the unity of Yugoslavia, with the new federal republic
    Declare claims, in the future, towards the rest of Macedonia (Greek and Bulgarian), in the name of the "liberation" of Macedonia. The potential "Macedonian" state would remain in Yugoslavia, as a federal republic, and so Yugoslavia would finally manage to access the Aegean Sea. The terms "Vardaska Makedonia" (Vardar Macedonia-Yugoslav), "Egeiska Makedonia" (Aegean Macedonia-Greek) and "Pirinska Makedonia" (Pirin Macedonia-Bulgarian), were invented at that time to promote the impression and belief of a partitionned and enslaved "Macedonia".

Politic Money

Notturno wrote:

Balcan peninsula has always been a mix of tribes, different ethnities and so were the ancient Greek - no "pure" ethnity. So I don't understand how can nations in the West get over it and learn to share their past, while in the South-East they have to be so nationalistic. Was anyone alive 3,000 years ago to claim the ancient heritage?

You are right.
It is funny the origin of the word "Balkan". It is Turkish. At the beginning it was related to the mountains, but later it gained a slang meaning of "turmoil", "mess", "confusion".