GMA, President or president?

Comment from a reader on "President Is Not Just Leader Of A Country":

Continuing the comments- according to the person who thinks only the President of the country may be called President while here in this country... how about the fact that President GMA herself refers to other heads of state as "President", thereby setting a precedent for president. Get a life dude.

[The Subic Bulletin] We are not sure that we would be looking on GMA an example for culture and etiquette...