I love to date only men that are taller then me.
Well that's a very specific requirement that people can't change.
I know it is very strange. I only do it with guys I date on a regular basis. 
Oh okay, well I've never found height to be a very important requirement. Personality and humor have always been my top priorities.
It is hard to tell now a days about height with dating now being done via telephone or computer. You never know if someone is telling the truth until you meet in person
To be honest I never even look at height on a dating profile. Im more interested in non religious men and those that don't want children. I really don't understand why you HAVE to have a taller man. Is there a reason?
Just a preference. Some cultures as well require people to be a certain age to start dating. I think that might be hard depending upon the age requirement