Clearly in a terribly unscientific study, many on FT like the enforcement of Rossini's rules on dress code even if I don't. So that is a good choice for SGS to do this as probably there was enough feedback to Richard etc to improve that angle. Key word is feedback.
While a dress code is not might cup of tea in the tropics (I was denied entry once to lounge at ROS and never went back because I don't bring long pants when on holiday in a tropical area and specifically go to Plaza Athenee because they are more flexible in enforcement). A dress code for Rossini's is obviously perfectly warranted a policy if the small subset here can be extrapolated to the larger plat/ suite population. Heck, I might be an outlier as I wear shorts and a t shirt often to work...
My own point is that I would like to give feedback to Richard here as he does read this, that I would hope Rossini's would have larger portion sizes/ little more flexibility on ordering. I am not saying a full buffet (because you are right there is a choice of Orchid for that) but I left Rossini's 3 times last time I was there hungry. And they wouldn't give me a steak with egg white scrambled eggs if I recall... had to be fried egg.
I suggested that more flexibility would be good and will keep doing so until I here the policy has changed (though Richard once posted here it wouldn't). Until then I will go to Orchid or PA's buffet if with my family as they like buffets. I'd only return to SGS if myself most likely. Since I usually take up 2-3 other rooms when I travel to BKK, then that is a revenue loss for SGS simply because of breakfast. I had 8 people or so with me last time and it was impossible to find a seat at Orchid (mgr there wouldn't even let us put seats together) so ended up in the less desirable restaurant next to Rossini's (cant remember name). That was not a dining experience anyone of us liked particularly.