I had to edit the comment to fit it into 300 characters (even the one part I was trying to submit). Here is the full comment,
"There is hardly anyone who says it didn't happen. What people have argued is that the numbers were inflated and some of the stories that were taken as facts were exaggerated. For example, one valid question to ask is how the Nazis could have incinerated so many people when incineration is extremely energy intensive and they were already facing resource shortages from the blockade. Incineration on a mass scale is unheard of because of how much energy and resources it would require to carry it out. Even with all the modern technology we have, we cannot afford to incinerate people on a that scale. Regardless of whether you think they could or couldn't have pulled this off, can we agree that it shouldn't be a criminal offense to wonder about things like that? Asking questions like this is a very different thing to saying the Holocaust didn't happen, yet it all gets lumped in with outright Holocaust denial.
What I can't believe is that European countries throw people in jail and fine them for asking these questions, and then turn around and pretend to care about freedom of speech when it comes to printing cartoons demeaning to Muslims. It's not a crime to question the numbers killed by Stalin, or the numbers killed in WW1, or the atrocities committed by difference sides in WW2, why is the Holocaust beyond all free speech and question? The truth doesn't fear questioning, and by making the Holocaust unquestionable (under penalty of law), they actually reinforce the beliefs of conspiracy theorists."
Edit: Notice the lack of any form of sources to anything that is being said combined with lots of weasel words, "what people have argued"