In my experience, what someone labels as "Negativity" is simply a truth that the labeller is unwilling or unable to presently accept.
In my experience, one person's "truth" on the internetz is entirely subjective. Opinions, on the other hand, get tossed around like nobodies business and some folks are right defensive about their positions. In terms of debating Skyrim - until people have really played it, a lot of what is being discussed - as opinion or "truth", is pretty much speculative. There are some solid grounds for discussion, based on what has been said or shown publically, but it sure is interesting to see how different people interpret even the simplest statements.
Blimey, I wouldn't have said so. You should have seen the reactions to my "give Skyrim a definitive ending" and "Oblivion's fast travel svcks" threads. Even though I was composed and polite throughout I received my worst abuse ever on gaming forums because I was proposing changes to the precious past instalments.
CD is lovely though.
Some topics are just very contentious, it seems. We kind of hate seeing the fast travel topic come up in Oblivion - it seems to bring out the worst in members who normally know better.

As for giving Skyrim a definitive ending - if you were proposing that Bethesda actually just "end" and elder scrolls game, upon, say, the completion of the main quest, I am not surprised people came down on you like a ton of bricks. But, that aside - we always allow and will leave along critical topics or debates on Beth games or other games, as long as people don't take the conversation to hurling personal insults, or, as has happened in the past, trying to introduce real world politics and such.