[r00fus]

You're getting down voted because, knowingly or not, you're using conversational terrorism [1] techniques.

Wary minds see/hear these words and immediately ignore any of your content. Think of it as a debating equivalent of pulling a godwin.

[1] http://www.vandruff.com/art_converse.html

[dvt]

What conventional terrorism technique have I used? Here's an analogue of what happened.

Bob says: yeah it's pretty easy to see that every even integer greater than 2 can be expressed as the sum of two primes.[1]

I say: not so fast, you can't just claim things like that. I mean it might be intuitive or 'generally accepted' (and even stochastically probable!), but the truth-value of such a statement is difficult to prove.

[1] Goldbach's conjecture.