I did not perceived you attempt to discussion, sorry. Actually the article is doing worst possible by the so named “finding of a number only” there estimations which are intentionally increased like the “Centre Against Expulsions” work. Unnecessary you need to point on somebody who is responsible it is enough offensive providing numbers which are subjective and biased. There are official more or less numbers of all nations population killed in WW II. You should start from this, until I know the Germany lost 8.7% of population in it 2 810 000 civilians. Thus it is impossible that the numbers can reach 3 millions during expulsion. Are you count also those who were collaborators of Nazi Germany? Well, …
I ask you to be reasonable. Do not put numbers which are just somebody biased “supposition”. Any way I found only one non-German estimation, which are Cold War effort most probably. Do you have UN or other independent sources regarding this numbers? Instead public “findings” which are very irritating you should look for objective source of information. Private multiplication of possibilities is offending. Do you know it? It is particularly such if you consider that other nations in fact lost much more and were not responsible for spark the hell of war.
In total proportion for one German in the WW II was kill ten people of other nations.
When somebody unleash beware dog who the culprit is? Dog or the person, and this is the case. I do not contradicts that after the WWII could occur lawlessness and lynches. Are you surprised of it? I am not, but you see if in competition during the 80’s the Soviets would invade Poland and Jaruzelski would support it in some way – we would blame Jaruzelski for our deaths in first place. The Soviets we world also, but first and above all Jaruzelski. He was the totalitarian and collaborator. Exactly the Germans should immediately and in first place blame Hitler and Nazi, though some love the Nazi ideology and activity.
Instead I see the article where numbers are juggled for God knows what. 
Thus I say to you the article look unbalanced and with bad faith. I just do not have time to discuss details as it is from the start bad. The tags are unimportant until you will point to Hitler and Nazi in first sentence as the primary culprits. You or others definitely opposed the introductions, so…?
The “recent” is not for philosophical deliberations. I took the word and sentence from the same article written long before I knew about it. Just I emphasize existing points – maybe deliberately hidden somewhere in the back and under carpet. Again, somebody dos not like the truth? Put “most recent” if you like. Do you?
You must be referring to Overmans and Ingo Haar, two historians. Does the total number two really justify a plural expression? Anyway, let's take a look at them.
I agree that total number of German deaths in Poland could be 1.1 milions. Twice there, 6 years of ocupations and guerrilla warfare, escape front od Soviet Army in winter 1944 and last the expulssion, which I can be shure was fewest deadly. But be specific with this numbers do not stick others. I very much beleave that in the post war phase the were revanges, but again are you surprised ?– evry 5th person in Poland was killed. Are you expecting after the “total war” against civilians evry of Polish citizen will be ideal christian and give you other chick to hit. If that was expected so it means the Nazi sin is all the more bigger.
Also, the XX236 sugestion is good . Change the title of the article.
Best A.