Four points here.
"Goldfinger -
"Why should they be denied the option to retreat?" Because that is what the rules state. look at the rules. If a country is in CD, it cannot retreat. It is disbanded. Right then. If a country is taken over AFTER the dislodgment, it should not be given new rights. The rules are clear. if you are in CD, and dislodged, you are disbanded, That is the rule. What you are suggesting is not Diplomacy, but some other game"
Point 1: The reason for this is simple. In real life you have to take a phone call so you walk out of the room. You miss a turn and the people decide they don't want to wait for you to come back so they have someone step in and take over for you. 1 turn, little consequence for the person who took over since they only missed one turn. On this site we give 2 turns before forcing someone into CD. This is due to live games and because we know internet problems exist. When someone takes over a position here they are 2 turns behind already, so we do not further punish them by taking away a retreat or build phase if it is available to them. This means that in real life a replacement loses a turn the original player missed and a retreat/build phase. On this site you lose two phases, the same as in real life, so to encourage people to take over a position as they see it, the extra turn of punishment is not enforced. While you may not agree with this method it is the one that the site designer and members in general found/find appropriate.
Point 2: While I don't agree with your view here you are welcome to email the site owner and designer of the code, Kestas and express your views to him, feel free to pm me if you need his email address.
Point 3: You're coming off as fairly hostile and arrogant, whether you mean to or not.
Point 4: Please refrain from discussing ongoing games, even though you didn't mention the game it's fairly obvious to anyone involved what you're taking about and this discussion could indirectly or directly encourage players in your game to treat Turkey AND you differently then before. This is known as metagaming (allowing factors from outside of the game to influence game decisions) and is prohibited on this site.