>>59
Actually the concept is this: Regardless of whetehr or not the posts are by seperate physical bodies, if the posts are in agreement then that means the thoughts are in agreement and since they are so similar they'd might as well be regarded as the same person as the possible minds (let's not forget it actually COULD be the same person, not saying its the case here, but we're talking generally) are essentially the same.
The only way to really avoid this is to not just claim agreement but either include more information to the discussion and/or cite the reason(s) why one agrees with the given statement.