Yeah, I feel your pain.
Day in and day out I get asked if I'm eating...

even worse, sometimes the real answer is no

I weigh 140 lbs [52.25 kg] and I'm 5'9" tall [175.26 cm]
To be honest (and I can't believe I'm saying anything about this since online I should be whomever I want to be...) but my mom is severely obese, and I'm terrified to be like her.

So I stopped eating as much, and let my stomach shrink so that I can't eat as much in one sitting, and I'm less hungry when I do need to eat (yes, that much thought has gone into this :o )
Quite frankly, complaints in their thread won't do a thing... Guys are guys, and the larger majority of thought is spent on _ _ _. Sad, but true. My only advice is to simply not go in there and not to worry about what they think. Heck, even one guy said that Ally McBeal was too skinny! So I guess there are some decent males left on the face of the planet...
edit: I did the conversions by hand and messed something up before. Now they should be correct.