Who's "we" ... It's one person's option
Personally, (and this isn't directed at you RR), I try to judge any comments made, as an individuals comments, and not as that person speaking for a whole nation. If I'd have used other sites to judge "typical" posters from any particular nation, I probably wouldn't be here, because a lot of them post on raw emotion, unbridled tribal allegiance, or are just trolling.
To the matter at hand, I don't think anyone from the SH should under estimate any of the six nations side (the players and coaches, ie, the people that matter, don't), as the RWC is being played in the six nations back yard, and the results have proven that most matches between all of the heavy weight contenders are closely fought, and the result could go either way.