Correct. I said never trust rumors. Why? Because you don't know what is true and what is not.
You said "Stop. Beleving. Rumors."
But when SMG showed you rumors that ended up being true, you said:
"we will -never- be able to ascertain which rumors are fact and which rumors are fiction before an official announcement."
So it's either a shift of goalpost, or you are just plain wrong to say "Stop. Believing. Rumors.", because some may be true, so it would be right to believe them.
Here are the possible outcomes:
A - We can believe a rumor and it ends up being true. GOOD
B - We can believe a rumor and it ends up being false. BAD
C - We can not believe a rumor and it ends up being true. BAD
D - We can not believe a rumor and it ends up being false. GOOD
So by never believing rumors, we are wrong on outcome C. By always believing rumors, we are wrong on outcome B.
So the best is to inspect rumors and look for patterns, to Fit into A & D as much as possible.
Easy, no black and white necessary, just use your logic and filter the rumors according to a few criteria.
This is much more constructive than flat out discrediting all rumors as you're suggesting. So stop.