WTF? - My weight

So from some random website I got hooked up with American Singles.com. Okay well, I'm game. I'll try anything once... I'm doing their little online profile and there is one section that talks about height/weight. Now no one... let me emphasize this... NO ONE except my doctor's office knows my real weight. Quite honestly, no one should know my real weight. So I try to skip that question and not answer. Nope, not an option. It won't let me pass without that information. So I give it up because under no circumstances will I reveal my weight to my friends or family, let alone the random strangers that would look at an online profile potentially to date me.